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Hennoch Geyer
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Munich, DE
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last 30 patents
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Patent Grant
Ski and its manufacture
Patent number
4,313,614
Issue date
Feb 2, 1982
Trak Incorporated
Hans Woitschatzke
A63 - SPORTS GAMES AMUSEMENTS
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Patent Grant
Ski brake
Patent number
4,109,931
Issue date
Aug 29, 1978
Trak Sportartikel GmbH
Hans Woitschatzke
A63 - SPORTS GAMES AMUSEMENTS