Edward T. Liljenwall

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Sunnyvale, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard having switches with tactile feedback
- Patent number 4,314,112
- Issue date Feb 2, 1982
- Hewlett-Packard Company
- William W. Misson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Printed circuit board and contact assembly for keyboard switch asse...
- Patent number 4,000,389
- Issue date Dec 28, 1976
- Hewlett-Packard Company
- William W. Misson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard having switches with tactile feedback
- Patent number 3,941,953
- Issue date Mar 2, 1976
- Hewlett-Packard Company
- William W. Misson
- H01 - BASIC ELECTRIC ELEMENTS