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Detachable skate frame
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Patent number 11,534,674
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Issue date Dec 27, 2022
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Neil Owen
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A63 - SPORTS GAMES AMUSEMENTS
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Ski or skate binding
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Patent number 8,801,025
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Issue date Aug 12, 2014
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Marsblade AB
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Per Mårs
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A43 - FOOTWEAR
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Ice skate blade alignment mechanism
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Patent number 5,137,290
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Issue date Aug 11, 1992
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Iowa State University Research Foundation, Inc.
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Patrick E. Patterson
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A63 - SPORTS GAMES AMUSEMENTS
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