Frederick Warren Smith

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Sutton, EN

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Patents Grantslast 30 patents

Information Patent Grant
Electrical filters including coupled resonators
- Patent number 4,065,735
- Issue date Dec 27, 1977
- U.S. Philips Corporation
- John S. Palfreeman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Acoustic surface wave devices
- Patent number 4,023,124
- Issue date May 10, 1977
- U.S. Philips Corporation
- David William Parker
- H03 - BASIC ELECTRONIC CIRCUITRY