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Hydrojet
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Patent number 4,596,117
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Issue date Jun 24, 1986
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Hyde Power Systems Inc.
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Robert W. Hyde
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A63 - SPORTS GAMES AMUSEMENTS
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Underwater propulsion unit
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Patent number 4,220,110
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Issue date Sep 2, 1980
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James E. Roberson
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3552347
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Patent number 3,552,347
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Issue date Jan 5, 1971
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A63 - SPORTS GAMES AMUSEMENTS
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3430602
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Patent number 3,430,602
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Issue date Mar 4, 1969
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3411474
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Patent number 3,411,474
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Issue date Nov 19, 1968
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A63 - SPORTS GAMES AMUSEMENTS
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3136279
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Patent number 3,136,279
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Issue date Jun 9, 1964
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A63 - SPORTS GAMES AMUSEMENTS
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3128739
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Patent number 3,128,739
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Issue date Apr 14, 1964
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3066638
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Patent number 3,066,638
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Issue date Dec 4, 1962
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A63 - SPORTS GAMES AMUSEMENTS
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3062002
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Patent number 3,062,002
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Issue date Nov 6, 1962
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3048140
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Patent number 3,048,140
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Issue date Aug 7, 1962
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A63 - SPORTS GAMES AMUSEMENTS
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1586595
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Patent number 1,586,595
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Issue date Jun 1, 1926
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A63 - SPORTS GAMES AMUSEMENTS