David Paul Hart

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Excelsior, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manually transporting a canoe
- Patent number 5,791,279
- Issue date Aug 11, 1998
- David Hart
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT

Patents Applicationslast 30 patents

Information Patent Application
Waterpillar
- Publication number 20040087224
- Publication date May 6, 2004
- David Paul Hart
- B60 - VEHICLES IN GENERAL