on printed conductors only

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Patents Grantslast 30 patents

Information Patent Grant
Illuminated keypad module for an electric lock
- Patent number 11,501,932
- Issue date Nov 15, 2022
- Taiwan Fu Hsing Industrial Co., Ltd.
- Fu-Chih Huang
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Key operated switch for keyboard
- Patent number 4,713,507
- Issue date Dec 15, 1987
- Gottfried Burkhardt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Membrane keyboard switch assembly having spacer structure and metho...
- Patent number 4,694,126
- Issue date Sep 15, 1987
- AMP Incorporated
- Hugh H. Aiken
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transparent switch having fine line conductors
- Patent number 4,449,023
- Issue date May 15, 1984
- AMP Incorporated
- Jacques J. Hilhorst
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
3560675
- Patent number 3,560,675
- Issue date Feb 2, 1971
- H01 - BASIC ELECTRIC ELEMENTS