EP0815572A1 - Lastumschalter eines stufenschalters - Google Patents
Lastumschalter eines stufenschaltersInfo
- Publication number
- EP0815572A1 EP0815572A1 EP96902959A EP96902959A EP0815572A1 EP 0815572 A1 EP0815572 A1 EP 0815572A1 EP 96902959 A EP96902959 A EP 96902959A EP 96902959 A EP96902959 A EP 96902959A EP 0815572 A1 EP0815572 A1 EP 0815572A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- diverter switch
- actuating
- insert
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
Definitions
- the invention relates to a diverter switch of a tap changer according to the preamble of the first claim.
- Such diverter switches are known from DE-OS 42 31 353.
- Two vacuum interrupters, hereinafter referred to as NAC, are provided for each phase; These VAC and mechanical switch contacts are actuated by a switch shaft that can be rotated in both directions and is quickly rotated after a force accumulator is triggered.
- NAC Two vacuum interrupters
- a cam is fixedly arranged on the selector shaft, which has a control cam on its face for each NAC, in which a role is positively guided, which acts on the actuating lever of the assigned NAC.
- the mechanical contacts are switched over by a switching segment which is also rotated by the drive shaft and which switches between fixed contacts arranged on the circumference of the diverter switch.
- Such a known diverter switch is accordingly not suitable for realizing an asymmetrical circuit in which the same contact is always the first to be switched electrically or moved mechanically, regardless of the switching direction.
- Such an unbalanced circuit is described, for example, in the unpublished DE-OS 44 07 945 and in a modified form with double-pole switching especially for diverter switches in the - also unpublished DE-OS 44 41 082.
- Figure 4 shows the latter asymmetrical circuit with double-pole switching, in which, regardless of the switching direction, the same actuation sequence, i.e. Sequence of switching means to be moved or actuated is present.
- WO 89/08924 has already described a special spring-jump drive specifically for thyristor switches, which should always trigger in one direction regardless of its drive direction, ie has only one output direction. This is one way to implement basically asymmetrical circuits;
- the spring force memory described is complicated in structure, requires a large amount of space due to the Niel number of necessary locking and coupling elements and is otherwise not suitable for the combined actuation of NAC as electrical switching elements on the one hand and mechanical contacts on the other hand in a predetermined actuation sequence.
- the object of the invention is therefore to provide a diverter switch of the type described at the outset, which allows the implementation of an asymmetrical switching in a simple manner with a shift shaft which can be driven in both directions of rotation, such that the same actuation sequence of NAC and mechanical switching elements should be achievable regardless of the direction of rotation.
- the main advantage of the invention lies in the fact that a conventional power accumulator, which has an elevator carriage and a driven part, as described, for example, in DE-PS 28 06 282, can be used.
- a further movement of a coupling element to be explained in more detail which is directed perpendicular to the direction of the elevator and acts in the axial direction of the switching shaft, is additionally generated by the elevator carriage during the continuous elevator process.
- both NAC and mechanical contacts for each direction of movement of the drive shaft, different partial cam disks are attached to one another on an axially displaceable switching insert arranged on the switching shaft; Due to the above-described axial movement of the coupling element, the partial cam disks provided for the respective direction of movement of the drive shaft can also be axially displaced and thus brought into or out of engagement with the corresponding switching elements for actuating the NAC and the mechanical contacts depending on the direction of rotation.
- Fig. 1 shows a diverter switch according to the invention in a side sectional view
- Fig. 2 shows this diverter switch in cross section in the plane AA
- Fig. 3 shows an energy store with a coupling element according to the invention alone in a perspective view
- FIG. 4 shows an asymmetrical circuit known per se that can be implemented with the invention
- FIG. 5 shows this circuit with switch contacts which, as shown in FIG. 1, are each mounted around a rotary track and are designed as change-over contacts
- FIG. 6 shows the switching sequence of the circuit shown in FIG. 5
- Fig. 7 shows the corresponding circuit diagram.
- the diverter switch consists of a diverter switch housing, here an insulating cylinder 1, in which a central switching shaft 4 is arranged.
- the selector shaft 4 is actuated in a manner known per se by an energy store 2.
- the energy accumulator 2 has an elevator carriage 2.2, which is continuously pulled up by a rotating drive cam 2.1 of a drive shaft, not shown here, and which, when it reaches its end position, abruptly runs after an output part 2.3, which in turn drives the control shaft 4 in a known and not shown manner .
- a contour 2.4 here on both sides, is provided on the side of the Aufeugsschlitten 2.2, in each of which a roller 3.3 of a coupling element 3 engages.
- the coupling member 3 further consists of two levers 3.1, which are approximately at the level of the energy accumulator 2 since then, and two articulated coupling rods 3.2, which extend vertically in the load switch housing parallel to the control shaft 4 and down at their f eien ends with an axially displaceable on the WegweUe 4 switching insert 5 in connection.
- the contour 2.4 described is designed so that - depending on the direction of movement of the elevator block 2.2 of the force accumulator 2 - by means of the coupling element 3 when the force accumulator 2 is being pulled up, ie before the actual load changeover, the switching insert 5 axially on the switching path 4 by a certain amount a is moved up or down.
- the shift insert 5 axially displaceable on the shift insert 4 can be rotated together with it by the triggered energy accumulator 2; this is possible, for example, through a multi-toothed design of the shift insert 4, which thereby allows the shift insert 5 to be carried in a positive manner without impairing its axial displaceability.
- a bearing for example a ball bearing, is provided between the lower part of the coupling element 3 and the switching insert 5, for example - not shown in the figures.
- the two further cams 8, 9 are provided on the switching insert 5 for actuating the two movable mechanical contacts 13, 14.
- the cam disks 8, 9 are also in each case superimposed partial cam disks 8.1, 8.2; 9.1, 9.2 subordinate.
- either the two upper partial cams 8.1, 9.1 or the two lower partial cams 8.2, 9.2 correspond to laterally arranged first tubes 13.1, 14.1 or second tubes 13.2, 14.2.
- the engagement of the two lower cam plates 8.2, 9.2 is shown in FIG.
- RoUen 13.1, 14.1; 13.2, 14.2 are each equipped with spring-loaded toggle levers 13.3, 14.3, which act on the rotatably mounted mechanical contacts 13, 14 in such a way that they can be brought into two switching controls beyond a dead center.
- the first mechanical contact 13 acts as a switching contact SKM and, depending on which control it receives, connects either the two fixed contacts SKM ⁇ or the two fixed contacts SKMB.
- the second movable contact 14 acts as a mechanical one Auxiliary contact HKM and, depending on the control it takes, connects either the two fixed auxiliary contacts HKM ⁇ or the two fixed auxiliary contacts HKMß with each other.
- the two moving mechanical contacts 13, 14 are arranged in the same horizontal plane.
- the VAC 11, 12 are always closed when stationary, i.e. they have a stable state that automatically adjusts itself without additional force, due to the vacuum inside and an additional spring.
- Each moving mechanical contact 13, 14 is accordingly assigned an upper first RoUe 13.1, 14.1 and a lower second RoUe 13.2, 14.2, respectively, which allow alternating switching between the two stable switching states.
- cam disks 8, 9 shown separately in the exemplary embodiment it is also possible to combine the cam disks 8, 9 shown separately in the exemplary embodiment to form a single cam disk with only one upper and one lower cam disk, in such a way that the actuation of SKM and HKM in each switching direction only done by a single cam.
- Fig. 2 shows such an arrangement schematically from above. It can be seen that within the IsoUerstoflzylinder 1, the WegweUe 4 is arranged with the axially displaceable and rotatable together with it the switching insert 5, the cam discs 6, 7, 8, 9 with the respective one above it
- Partial cams carries.
- the two VACs are centered around these cams for each phase, one as the electrical switching contact SKV and the other as the electrical one
- Auxiliary contact HKV according to the circuit shown in Fig. 4 acts, as well as the mechanical
- the areas in which the switching and actuating means of a phase are located are characterized by areas delimited by plows in FIG. 2.
- the invention allows simple implementation of asymmetrical circuits, i.e. a simple device-technical implementation of the same sequence of actuation of electrical and mechanical switching elements in a diverter switch regardless of its switching direction, which alternates due to the force accumulator that can be opened and released in two directions.
- the required movement for the shift-direction-dependent shift according to the invention is generated in a simple manner during the continuous movement of the elevator chute of a force accumulator known per se, ie before the actual switching process begins. All that is required is the additional contour described on the elevator carriage; Except for this easily realizable change, the known energy stores can be used in unchanged form, which offers further advantages.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19510809 | 1995-03-24 | ||
DE19510809A DE19510809C1 (de) | 1995-03-24 | 1995-03-24 | Lastumschalter eines Stufenschalters |
PCT/EP1996/000400 WO1996030922A1 (de) | 1995-03-24 | 1996-01-31 | Lastumschalter eines stufenschalters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0815572A1 true EP0815572A1 (de) | 1998-01-07 |
EP0815572B1 EP0815572B1 (de) | 1998-08-26 |
Family
ID=7757629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96902959A Expired - Lifetime EP0815572B1 (de) | 1995-03-24 | 1996-01-31 | Lastumschalter eines stufenschalters |
Country Status (19)
Country | Link |
---|---|
US (1) | US5834717A (de) |
EP (1) | EP0815572B1 (de) |
JP (1) | JP3053221B2 (de) |
KR (1) | KR100329114B1 (de) |
CN (1) | CN1088905C (de) |
AT (1) | ATE170329T1 (de) |
AU (1) | AU4716696A (de) |
BG (1) | BG62584B1 (de) |
BR (1) | BR9607064A (de) |
CA (1) | CA2216276C (de) |
CZ (1) | CZ285329B6 (de) |
DE (2) | DE19510809C1 (de) |
HU (1) | HU219929B (de) |
IN (1) | IN192636B (de) |
PL (1) | PL180056B1 (de) |
RO (1) | RO118555B1 (de) |
RU (1) | RU2156513C2 (de) |
UA (1) | UA43395C2 (de) |
WO (1) | WO1996030922A1 (de) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19510809C1 (de) * | 1995-03-24 | 1996-07-04 | Reinhausen Maschf Scheubeck | Lastumschalter eines Stufenschalters |
DE19743865C1 (de) * | 1997-10-04 | 1999-04-15 | Reinhausen Maschf Scheubeck | Stufenschalter |
DE19821775C1 (de) * | 1998-05-14 | 1999-10-14 | Reinhausen Maschf Scheubeck | Lastwähler |
US6693247B1 (en) * | 2000-06-09 | 2004-02-17 | Mcgraw-Edison Company | Load tap changer with direct drive and brake |
DE10050821C1 (de) | 2000-10-13 | 2002-05-02 | Reinhausen Maschf Scheubeck | Mechanischer Schaltkontakt |
US6825426B2 (en) * | 2002-10-02 | 2004-11-30 | Mcgraw-Edison Company | Make-before-break selector switch |
DE10312176B3 (de) * | 2003-03-19 | 2004-06-09 | Maschinenfabrik Reinhausen Gmbh | Lastumschalter für einen Stufenschalter |
US7614357B2 (en) * | 2003-09-08 | 2009-11-10 | Cooper Technologies Company | Step voltage regulator polymer position indicator with non-linear drive mechanism |
US7750257B2 (en) * | 2004-06-03 | 2010-07-06 | Cooper Technologies Company | Molded polymer load tap changer |
JP2008505479A (ja) * | 2004-06-30 | 2008-02-21 | アーベーベー・リサーチ・リミテッド | 切換開閉器、そのような開閉器を動作させるための方法及びそのような開閉器の使用 |
DE102005009193B3 (de) * | 2005-03-01 | 2006-08-17 | Maschinenfabrik Reinhausen Gmbh | Umsteller |
WO2006120919A1 (ja) * | 2005-05-09 | 2006-11-16 | Mitsubishi Denki Kabushiki Kaisha | 負荷時タップ切換器の切換動作監視装置 |
DE102005052182A1 (de) * | 2005-10-25 | 2007-05-03 | Siemens Ag | Verklinkungseinrichtung für einen Federspeicherantrieb |
US7996050B2 (en) | 2006-02-28 | 2011-08-09 | Lg Electronics Inc. | Input device for an electronic device and electronic device having the same |
GB2457079A (en) * | 2008-02-01 | 2009-08-05 | Brush Transformers Ltd | On-load tap changer |
CN101937791B (zh) * | 2009-06-29 | 2013-03-20 | 西门子公司 | 隔离开关的控制装置 |
DE102009043171B4 (de) * | 2009-09-26 | 2014-11-20 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter mit Vakuumschaltröhren |
DE102010007535B4 (de) * | 2010-02-11 | 2017-12-21 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter mit Freilaufelement |
DE102010015051B4 (de) * | 2010-04-15 | 2012-06-14 | Maschinenfabrik Reinhausen Gmbh | Mechanischer Schaltkontakt |
DE102010020130A1 (de) * | 2010-05-11 | 2011-11-17 | Maschinenfabrik Reinhausen Gmbh | Lastumschalter für einen Stufenschalter |
DE202010017377U1 (de) | 2010-06-18 | 2012-01-03 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102011113718A1 (de) * | 2011-09-17 | 2013-03-21 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102011119318B4 (de) * | 2011-11-23 | 2014-11-27 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter mit Vakuumschaltröhren |
DE102012202327B4 (de) * | 2012-02-16 | 2015-01-08 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter mit mindestens zwei Vakuumschaltröhren und Antrieb für einen Lastumschalter mit mindestens zwei Vakuumschaltröhren |
CN102709106B (zh) * | 2012-05-17 | 2015-03-11 | 上海华明电力设备集团有限公司 | 真空灭弧转换选择器 |
ES2694124T3 (es) * | 2012-06-11 | 2018-12-18 | Abb Oy | Aparato de conmutación de la corriente eléctrica |
DE102012105152B4 (de) * | 2012-06-14 | 2015-11-12 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter zur unterbrechungslosen Umschaltung zwischen verschiedenen Wicklungsanzapfungen eines Stufentransformators |
DE102012107446B4 (de) | 2012-08-14 | 2015-12-31 | Maschinenfabrik Reinhausen Gmbh | Lastumschalter, Laststufenschalter und Verfahren zum Umschalten eines Laststufenschalters |
DE102012215479B4 (de) * | 2012-08-31 | 2014-08-21 | Siemens Aktiengesellschaft | Verfahren zum Schließen eines Schalters und Schalter zur Durchführung des Verfahrens |
EP2797088A1 (de) * | 2013-04-23 | 2014-10-29 | ABB Technology AG | Spule für einen Trockentransformator und Trockentransformator |
DE102013107558A1 (de) | 2013-07-16 | 2015-01-22 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102013107557B4 (de) | 2013-07-16 | 2017-02-23 | Maschinenfabrik Reinhausen Gmbh | Lastwähler |
DE102013107550B4 (de) | 2013-07-16 | 2017-05-04 | Maschinenfabrik Reinhausen Gmbh | Lastwähler |
DE102013107549B4 (de) | 2013-07-16 | 2017-11-30 | Maschinenfabrik Reinhausen Gmbh | Lastwähler für Stufentransformatoren und Trägerarm für einen Vorwähler des Lastwählers |
DE102013107554B4 (de) * | 2013-07-16 | 2016-05-19 | Maschinenfabrik Reinhausen Gmbh | Lastwähler |
DE102013107547B4 (de) | 2013-07-16 | 2017-01-19 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter, Verfahren zur Montage eines Lastumschaltereinsatzes im Laststufenschalter und Kerosinablassschraube |
DE102013107552B4 (de) | 2013-07-16 | 2017-03-16 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102013107553B4 (de) * | 2013-07-16 | 2016-05-19 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter, Getriebe in dem Laststufenschalter und Verfahren einer notbetrieblichen Einstellung einer definierten Schaltposition in dem Laststufenschalter |
DE102013107545B4 (de) | 2013-07-16 | 2017-02-16 | Maschinenfabrik Reinhausen Gmbh | Lastwähler |
CN103400721B (zh) * | 2013-08-09 | 2015-04-29 | 贵州长征电气有限公司 | 有载分接开关中的对开式转换开关 |
DE102013110655B4 (de) * | 2013-09-26 | 2016-02-25 | Maschinenfabrik Reinhausen Gmbh | Schalter, Stufenschalter für einen Regeltransformator sowie Regeltransformator |
EP3086343B1 (de) * | 2015-04-21 | 2018-11-14 | Ormazabal Corporate Technology, A.I.E. | Laststufenschalter |
DE102020117769A1 (de) | 2020-07-06 | 2022-01-13 | Maschinenfabrik Reinhausen Gmbh | Vakuumschaltröhre |
Family Cites Families (12)
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AT275674B (de) * | 1966-12-02 | 1969-11-10 | Elin Union Ag | Hauptstromschalter zur Führung des Dauerstromes bei Lastumschaltern für Regeltransformatoren |
AT278143B (de) * | 1967-06-23 | 1970-01-26 | Naimer H L | Elektrische Schalteinrichtung |
DE1956369B2 (de) * | 1969-11-08 | 1971-10-21 | Kraftspeicher fuer lastumschalter von stufenschaltern fuer regeltransformatoren | |
SE357279B (de) * | 1971-11-02 | 1973-06-18 | Asea Ab | |
DE2348091C2 (de) * | 1973-09-25 | 1975-08-28 | Maschinenfabrik Reinhausen Gebrueder Scheubeck Kg, 8400 Regensburg | Dreiphasiger zylindrischer Lastumschalter für Stufenschalter von Stufentransformatoren |
US4123291A (en) * | 1976-12-23 | 1978-10-31 | Armco Steel Corporation | Method of treating steel strip and sheet surfaces, in sulfur-bearing atmosphere, for metallic coating |
DE2747489C3 (de) * | 1977-10-22 | 1982-01-21 | Maschinenfabrik Reinhausen Gebrüder Scheubeck GmbH & Co KG, 8400 Regensburg | Lastumschalter für Stufenschalter von Stufentransformatoren |
DE2806282C2 (de) * | 1978-02-15 | 1980-04-10 | Maschinenfabrik Reinhausen Gebrueder Scheubeck Gmbh & Co Kg, 8400 Regensburg | Lastumschalter für Stufenschalter von Stufentransformatoren |
JPS60124810A (ja) * | 1983-12-08 | 1985-07-03 | Mitsubishi Electric Corp | 負荷タップ選択器 |
AT389187B (de) * | 1988-03-18 | 1989-10-25 | Elin Union Ag | Federsprungantrieb fuer lastumschalter von stufenschaltern |
DE4231353C2 (de) * | 1991-09-19 | 1997-07-24 | Toshiba Kawasaki Kk | Stufenschalter |
DE19510809C1 (de) * | 1995-03-24 | 1996-07-04 | Reinhausen Maschf Scheubeck | Lastumschalter eines Stufenschalters |
-
1995
- 1995-03-24 DE DE19510809A patent/DE19510809C1/de not_active Expired - Fee Related
-
1996
- 1996-01-31 AT AT96902959T patent/ATE170329T1/de not_active IP Right Cessation
- 1996-01-31 RU RU97117601/09A patent/RU2156513C2/ru not_active IP Right Cessation
- 1996-01-31 US US08/817,186 patent/US5834717A/en not_active Expired - Lifetime
- 1996-01-31 UA UA97094693A patent/UA43395C2/uk unknown
- 1996-01-31 DE DE59600484T patent/DE59600484D1/de not_active Expired - Lifetime
- 1996-01-31 CA CA002216276A patent/CA2216276C/en not_active Expired - Fee Related
- 1996-01-31 PL PL96322421A patent/PL180056B1/pl not_active IP Right Cessation
- 1996-01-31 HU HU9802294A patent/HU219929B/hu not_active IP Right Cessation
- 1996-01-31 EP EP96902959A patent/EP0815572B1/de not_active Expired - Lifetime
- 1996-01-31 RO RO97-01709A patent/RO118555B1/ro unknown
- 1996-01-31 CN CN96190955A patent/CN1088905C/zh not_active Expired - Fee Related
- 1996-01-31 BR BR9607064A patent/BR9607064A/pt not_active IP Right Cessation
- 1996-01-31 AU AU47166/96A patent/AU4716696A/en not_active Abandoned
- 1996-01-31 JP JP8528826A patent/JP3053221B2/ja not_active Expired - Fee Related
- 1996-01-31 KR KR1019970706132A patent/KR100329114B1/ko not_active IP Right Cessation
- 1996-01-31 CZ CZ973013A patent/CZ285329B6/cs not_active IP Right Cessation
- 1996-01-31 WO PCT/EP1996/000400 patent/WO1996030922A1/de active IP Right Grant
- 1996-03-22 IN IN464MA1996 patent/IN192636B/en unknown
-
1997
- 1997-03-21 BG BG101350A patent/BG62584B1/bg unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9630922A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2216276C (en) | 2006-05-09 |
HUP9802294A3 (en) | 2000-04-28 |
JPH10507872A (ja) | 1998-07-28 |
RU2156513C2 (ru) | 2000-09-20 |
CZ301397A3 (cs) | 1998-03-18 |
HUP9802294A2 (hu) | 1999-01-28 |
AU4716696A (en) | 1996-10-16 |
CN1164928A (zh) | 1997-11-12 |
US5834717A (en) | 1998-11-10 |
PL180056B1 (pl) | 2000-12-29 |
BG101350A (en) | 1997-09-30 |
HU219929B (hu) | 2001-09-28 |
CA2216276A1 (en) | 1996-10-03 |
JP3053221B2 (ja) | 2000-06-19 |
WO1996030922A1 (de) | 1996-10-03 |
DE59600484D1 (de) | 1998-10-01 |
BG62584B1 (bg) | 2000-02-29 |
DE19510809C1 (de) | 1996-07-04 |
ATE170329T1 (de) | 1998-09-15 |
KR19980702725A (ko) | 1998-08-05 |
CN1088905C (zh) | 2002-08-07 |
EP0815572B1 (de) | 1998-08-26 |
KR100329114B1 (ko) | 2002-10-25 |
UA43395C2 (uk) | 2001-12-17 |
CZ285329B6 (cs) | 1999-07-14 |
BR9607064A (pt) | 1997-11-04 |
PL322421A1 (en) | 1998-01-19 |
RO118555B1 (ro) | 2003-06-30 |
IN192636B (de) | 2004-05-08 |
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Legal Events
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