Frederick W. LaMarche

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Northfield, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Back lighted, full travel push button membrane keyboard
- Patent number 4,489,227
- Issue date Dec 18, 1984
- Sheldahl, Inc.
- Fredrick W. Lamarche
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite top membrane for flat panel switch arrays
- Patent number 4,258,096
- Issue date Mar 24, 1981
- Sheldahl, Inc.
- Frederick W. LaMarche
- B44 - DECORATIVE ARTS
Information Patent Grant
Routing arrangement for ground conductors in printed circuit struct...
- Patent number 4,127,740
- Issue date Nov 28, 1978
- Sheldahl, Inc.
- Frederick W. LaMarche
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Connector for flexible circuitry
- Patent number 3,980,375
- Issue date Sep 14, 1976
- Sheldahl, Inc.
- Frederick W. LaMarche
- H01 - BASIC ELECTRIC ELEMENTS