Robert F. Spencer

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Concord, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Water walker
- Patent number 9,611,019
- Issue date Apr 4, 2017
- Robert F. Spencer
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
WATER WALKER
- Publication number 20150329189
- Publication date Nov 19, 2015
- Robert F. Spencer
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT