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Swimming aid
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Marvin N. Gag
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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Swimming wheel apparatus
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Patent number 4,437,840
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Issue date Mar 20, 1984
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Makram I. Filippos
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A63 - SPORTS GAMES AMUSEMENTS
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3580213
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Patent number 3,580,213
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A63 - SPORTS GAMES AMUSEMENTS
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A63 - SPORTS GAMES AMUSEMENTS
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A63 - SPORTS GAMES AMUSEMENTS
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A63 - SPORTS GAMES AMUSEMENTS
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1640390
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A63 - SPORTS GAMES AMUSEMENTS
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1578584
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Patent number 1,578,584
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A63 - SPORTS GAMES AMUSEMENTS
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1349891
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Issue date Aug 17, 1920
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A63 - SPORTS GAMES AMUSEMENTS