Charles R. Halverson

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Securing mechanism for golf clubs
- Patent number 7,434,425
- Issue date Oct 14, 2008
- Roger O. Mahre
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Securing mechanism for golf clubs
- Patent number 7,201,025
- Issue date Apr 10, 2007
- Roger O. Mahre
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SECURING MECHANISM FOR GOLF CLUBS
- Publication number 20070180872
- Publication date Aug 9, 2007
- Roger O. Mahre
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Securing mechanism for golf clubs
- Publication number 20040055343
- Publication date Mar 25, 2004
- Roger O. Mahre
- A63 - SPORTS GAMES AMUSEMENTS