|
| US3948146 | 19 juin 1973 | 6 avr. 1976 | Zahnradfabrik Friedrichshafen AG | Control system for hydraulic coupling |
| US3951162 | 18 avr. 1974 | 20 avr. 1976 | Koehring Company | Control valve with flow control means |
| US4040438 | 30 janv. 1976 | 9 août 1977 | Koehring | Control valve with flow control means |
| US4050298 | 10 mai 1976 | 27 sept. 1977 | Hope Technical Developments Limited | Manually operated control valve and testing apparatus incorporating such valve |
| US4147179 | 23 févr. 1977 | 3 avr. 1979 | Shoketsu Kinzoku Kogyo Co., Ltd. | Pressure governor valve equipped with flow control valve |
| US4175473 | 6 avr. 1977 | 27 nov. 1979 | Shoketsu Kinzoku Kogyo Kabushiki Kaisha | Fluid circuit |
| US4177840 | 29 déc. 1977 | 11 déc. 1979 | MAC Valves, Inc. | Pressure regulation and flow control valve with combination needle and check valves |
| US4182360 | 11 avr. 1977 | 8 janv. 1980 | MAC Valves, Inc. | Pressure regulating and flow control valve |
| US4195552 | 3 déc. 1976 | 1 avr. 1980 | Mac Valves, Inc. | Pressure reducer and flow control valve |
| US4197874 | 31 août 1978 | 15 avr. 1980 | MAC Valves, Inc. | Pressure regulator and flow control valve with pre-exhaust vent means |
| US4218957 | 3 oct. 1977 | 26 août 1980 | Borg-Warner Corporation | Flow control valve |
| US4262695 | 19 sept. 1979 | 21 avr. 1981 | Shoketsu Kinzoku Kogyo Kabushiki Kaisha | Flow rate control valve |
| US4271864 | 31 mars 1980 | 9 juin 1981 | Mac Valves, Inc. | Pressure regulating valve |
| US4382360 | 15 sept. 1980 | 10 mai 1983 | Bucyrus-Erie Company | Unloading arrangement for hydraulic swing circuit or the like |
| USRE29292 | 21 avr. 1975 | 5 juil. 1977 | Sundstrand Corporation | Control valve means for fluid motors |
