David L. Epperson

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Granite Falls, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Particulate spacers for touch sensitive overlay panel applications
- Patent number 4,965,421
- Issue date Oct 23, 1990
- John Fluke Mfg. Co., Inc.
- David L. Epperson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Particulate spacers for inhibiting Newton rings in touch sensitive...
- Patent number 4,696,860
- Issue date Sep 29, 1987
- John Fluke Mfg. Co., Inc.
- David L. Epperson
- G06 - COMPUTING CALCULATING COUNTING