Gunnar Bjorhn

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Stockholm, SE

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Patents Grantslast 30 patents

Information Patent Grant
String tensioning device for use on rackets for ball games
- Patent number 4,662,632
- Issue date May 5, 1987
- Gunnar Bjorhn
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Ball-collecting apparatus
- Patent number 4,116,436
- Issue date Sep 26, 1978
- Gunnar Bjorhn
- A63 - SPORTS GAMES AMUSEMENTS