Robert W. Piper

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Tonka Bay, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Ski-sled frame for mounting to snow skis
- Patent number 6,969,074
- Issue date Nov 29, 2005
- Robert W. Piper
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Ski-sled frame for mounting to snow skis
- Publication number 20050001391
- Publication date Jan 6, 2005
- Robert W. Piper
- A63 - SPORTS GAMES AMUSEMENTS