William Claude Sherwin

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Salt Lake City, UT, US

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Patents Grantslast 30 patents

Information Patent Grant
Cross-country ski boot restraining apparatus
- Patent number 4,196,921
- Issue date Apr 8, 1980
- William C. Sherwin
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Ski boot heel restraining apparatus
- Patent number 4,113,275
- Issue date Sep 12, 1978
- Nortec Inc.
- William Claude Sherwin
- A63 - SPORTS GAMES AMUSEMENTS