James C. Willyard

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Silver Spring, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Cylinder-driven marine propulsion system
- Patent number 4,070,982
- Issue date Jan 31, 1978
- James C. Willyard
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Air nozzle controlled marine propulsion system
- Patent number 3,978,814
- Issue date Sep 7, 1976
- James C. Willyard
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT