|
| US3941953 | 23 août 1971 | 2 mars 1976 | Hewlett-Packard Company | Keyboard having switches with tactile feedback |
| US3947390 | 23 sept. 1974 | 30 mars 1976 | Xerox Corporation | Arch shaped snap-type switch contact |
| US3950846 | 23 sept. 1974 | 20 avr. 1976 | Xerox Corporation | Method of forming a deformed, integral switching device |
| US3968336 | 23 sept. 1974 | 6 juil. 1976 | Xerox Corporation | Keyboard switch assembly having movable contact, and supporting helicline type legs disposed co-planar to common conductive sheet |
| US3969595 | 23 sept. 1974 | 13 juil. 1976 | Xerox Corporation | Sequential switching assembly having plural, spaced flexible contact layers |
| US3973091 | 3 févr. 1975 | 3 août 1976 | Texas Instruments Incorporated | Pushbutton keyboard assembly having pole and inner contacts simultaneously engaged by a bridging contact |
| US3979568 | 23 sept. 1974 | 7 sept. 1976 | Xerox Corporation | Keyboard switch assembly having raised contacts supported by helicline legs on a common conductive sheet |
| US3987259 | 12 juin 1975 | 19 oct. 1976 | Globe-Union Inc. | Membrane switch apparatus having sequential bridging contact arrangement |
| US3996429 | 18 avr. 1975 | 7 déc. 1976 | Northern Electric Company Limited | Multi-contact push-button switch having plural prestressed contact members designed to provide plural circuit simultaneous switching inputs |
| US3996430 | 2 mai 1975 | 7 déc. 1976 | Preh Elektrofeinmechanische Werke | Keyboard switch assembly having multilayer printed circuit structure |
| US3996547 | 5 sept. 1974 | 7 déc. 1976 | Texas Instruments Incorporated | Motor protector apparatus |
| US3999025 | 30 juil. 1975 | 21 déc. 1976 | Burroughs Corporation | Low profile tactile feedback keyboard switch assembly |
| US4005293 | 29 nov. 1974 | 25 janv. 1977 | Texas Instruments Incorporated | Pushbutton keyboard switch assembly having individual concave-convex contacts integrally attached to conductor strips |
| US4029916 | 18 avr. 1975 | 14 juin 1977 | Northern Electric Company Limited | Multi-contact push-button switch and plural embodiment for keyboard switch assembly |
| US4065651 | 18 mai 1976 | 27 déc. 1977 | Societe Suisse pour l'Industrie Horlogere Management Services S.A. | Keyboard switch assembly having flexible rung ladder contacts |
| US4084071 | 6 déc. 1976 | 11 avr. 1978 | RCA Corporation | Switch mechanism for a calculator type keyboard |
| US4086451 | 6 déc. 1976 | 25 avr. 1978 | Texas Instruments Incorporated | Keyboard apparatus |
| US4099037 | 21 juin 1976 | 4 juil. 1978 | National Semiconductor Corporation | Key board switch assembly having canti-levered leaf spring contact assembly on common conductive frame |
| US4145584 | 25 avr. 1977 | 20 mars 1979 | | Flexible keyboard switch with integral spacer protrusions |
| US4150420 | 15 déc. 1977 | 17 avr. 1979 | Tektronix, Inc. | Electrical connector |
| US4194099 | 25 oct. 1977 | 18 mars 1980 | W. H. Brady Co. | Control panel overlay |
| US4211497 | 13 mars 1978 | 8 juil. 1980 | | Data input system |
| US4228329 | 26 juin 1978 | 14 oct. 1980 | Hitachi, Ltd. | Compact keyboard structure |
| US4359613 | 16 mars 1981 | 16 nov. 1982 | Engineering Research Applications, Inc. | Molded keyboard and method of fabricating same |
| US4456798 | 5 juin 1981 | 26 juin 1984 | Nippon Mektron Ltd. | Panel keyboard with irregular surfaced spacer |
| US4463232 | 10 juin 1982 | 31 juil. 1984 | Toho- Polymer Kabushiki Kaisha | Membrane switch having spacer posts |
| US4492838 | 24 févr. 1983 | 8 janv. 1985 | AMP Incorporated | Key switch having an actuator integral with the return spring |
| US4501939 | 4 nov. 1983 | 26 févr. 1985 | Personal Peripherals Inc. | Digital joystick controller |
| US4532376 | 29 juil. 1983 | 30 juil. 1985 | Sanders Associates, Inc. | Electronic pen with switching mechanism for selectively providing tactile or non-tactile feel |
| US4547767 | 11 oct. 1983 | 15 oct. 1985 | Moose Products, Inc. | Printed circuit board for activating and deactivating alarm systems |
| US4555954 | 21 déc. 1984 | 3 déc. 1985 | AT&T Technologies, Inc. | Method and apparatus for sensing tactile forces |
| US4771143 | 16 avr. 1987 | 13 sept. 1988 | Wilhelm Ruf K.G. | Diaphragm keyboard |
| US4794215 | 8 août 1986 | 27 déc. 1988 | Matsushita Electric Industrial Co., Ltd. | Push switch sealed against contaminants |
| US5209665 | 12 oct. 1989 | 11 mai 1993 | Sight & Sound Incorporated | Interactive audio visual work |
| US5523531 | 22 déc. 1994 | 4 juin 1996 | Sony Corporation
Sony Electronics, Inc. | Multi-directional button assembly with center and peripheral arranged buttons and microswitches |
| US5729222 | 25 nov. 1996 | 17 mars 1998 | Jerry Iggulden | User-configurable control device |
| US5803748 | 30 sept. 1996 | 8 sept. 1998 | Publications International, Ltd. | Apparatus for producing audible sounds in response to visual indicia |
| US5898147 | 29 oct. 1997 | 27 avr. 1999 | C & K Components, Inc. | Dual tact switch assembly |
| US5939690 | 18 déc. 1997 | 17 août 1999 | Matsushita Electric Industrial Co., Ltd. | Structure of push-on switch |
| US6041215 | 31 mars 1998 | 21 mars 2000 | Publications International, Ltd. | Method for making an electronic book for producing audible sounds in response to visual indicia |
| US6463263 | 28 janv. 2000 | 8 oct. 2002 | Telefonaktiebolaget LM Ericsson (publ) | Communication station |
| US6603408 | 28 juin 2000 | 5 août 2003 | Brenda Lewellen Gaba | Flexible membrane keyboard |
| US7345670 | 26 juin 2001 | 18 mars 2008 | Anascape | Image controller |
| US7507923 | 1 déc. 2006 | 24 mars 2009 | Omron Dualtec Automotive Electronics Inc. | Electrical switch |
| USRE30923 | 13 nov. 1979 | 4 mai 1982 | Bowmar Instrument Corporation | Calculator keyboard switch with disc spring contact and printed circuit board |
| USRE31114 | 17 nov. 1980 | 28 déc. 1982 | Tektronix, Inc. | Electrical connector |
| USRE32419 | 27 janv. 1986 | 12 mai 1987 | Engineering Research Applications, Inc. | Molded keyboard and method of fabricating same |
