Sidney A. Hansen

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Beaverton, MI, US

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Patents Applicationslast 30 patents

Information Patent Application
Swing speed sport conditioning aid
- Publication number 20080146384
- Publication date Jun 19, 2008
- Sidney A. Hansen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Weight training aid
- Publication number 20080108457
- Publication date May 8, 2008
- Sidney A. Hansen
- A63 - SPORTS GAMES AMUSEMENTS