|
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| US4065649 | 14. Juni 1976 | 27. Dez. 1977 | Lake Center Industries | Pressure sensitive matrix switch having apertured spacer with flexible double sided adhesive intermediate and channels optionally interposed between apertures |
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| US4158115 | 26. Juni 1978 | 12. Juni 1979 | W. H. Brady Co. | Internally connecting flexible switch |
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| US4317012 | 17. Apr. 1980 | 23. Febr. 1982 | Nissan Motor Company, Limited | Display board type switching device |
| US4332989 | 6. Dez. 1979 | 1. Juni 1982 | Fraunhofer Gesellschaft zur Forderung der argewandten Forschung e.v. | Safety arrangement for systems having parts spatially moved |
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| US4515999 | 24. Jan. 1983 | 7. Mai 1985 | Rogers Corporation | Full travel keyboard |
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| US4571466 | 6. Aug. 1984 | 18. Febr. 1986 | Kokoku Rubber Industrial Company Limited | Spring unit for a keyboard |
| US4581507 | 26. Dez. 1984 | 8. Apr. 1986 | Motorola, Inc. | Impact switch |
| US4650934 | 3. Sept. 1985 | 17. März 1987 | | Hand movement controller |
| US4688027 | 4. Nov. 1985 | 18. Aug. 1987 | | Isolated molded sensor strip |
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| US4800582 | 8. Aug. 1986 | 24. Jan. 1989 | Dictaphone Corporation | Method and apparatus for creating and storing telephone directory listings |
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| US4894495 | 18. Juli 1988 | 16. Jan. 1990 | Olympus Optical Co., Ltd. | Watertight electrical contact units |
| US4975896 | 8. Aug. 1986 | 4. Dez. 1990 | | Communications network and method |
| US5149923 | 29. Aug. 1991 | 22. Sept. 1992 | Lucas Duralith Corporation | Backlit tactile keyboard with improved tactile and electrical characteristics |
| US5193669 | 28. Febr. 1991 | 16. März 1993 | Lucas Industries, Inc. | Switch assembly |
| US5274217 | 8. Okt. 1991 | 28. Dez. 1993 | Fritz Hartmann Geratebau GmbH & Co. KG | Keyboard having keys with different heights |
| US5493082 | 9. Aug. 1994 | 20. Febr. 1996 | Hughes Aircraft Company | Elastomeric switch for electronic devices |
| US5721666 | 11. Jan. 1996 | 24. Febr. 1998 | Master Molded Products Corporation | Device panel with in-molded applique |
| US5796059 | 19. März 1996 | 18. Aug. 1998 | | Pressure-sensitive switch apparatus |
| US5990799 | 6. Okt. 1998 | 23. Nov. 1999 | | Chair occupancy monitoring device |
