Richard E. Marsh

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West Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Microphone assembly
- Patent number 4,355,213
- Issue date Oct 19, 1982
- Marsh Products, Inc.
- Richard E. Marsh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Keyboard strip switch assembly having multifurcated conductive scre...
- Patent number 4,090,045
- Issue date May 16, 1978
- Marsh Products, Inc.
- Richard E. Marsh
- H01 - BASIC ELECTRIC ELEMENTS