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Cube puzzle
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Patent number 6,460,850
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Issue date Oct 8, 2002
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Samuel M. Dodek
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A63 - SPORTS GAMES AMUSEMENTS
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Slider puzzle
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Patent number 5,470,065
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Issue date Nov 28, 1995
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Robert Hilchie
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A63 - SPORTS GAMES AMUSEMENTS
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Puzzle type toy
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Patent number 4,283,055
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Issue date Aug 11, 1981
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Donald R. Larsen
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A63 - SPORTS GAMES AMUSEMENTS
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Dice block puzzle
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Patent number 4,206,923
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Issue date Jun 10, 1980
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Maurice Cloutier
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A63 - SPORTS GAMES AMUSEMENTS
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3827162
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Patent number 3,827,162
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Issue date Aug 6, 1974
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3721448
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Patent number 3,721,448
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Issue date Mar 20, 1973
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A63 - SPORTS GAMES AMUSEMENTS
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3612537
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Patent number 3,612,537
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Issue date Oct 12, 1971
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A63 - SPORTS GAMES AMUSEMENTS
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2469364
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Patent number 2,469,364
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Issue date May 10, 1949
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A63 - SPORTS GAMES AMUSEMENTS
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2181116
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Patent number 2,181,116
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Issue date Nov 28, 1939
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A63 - SPORTS GAMES AMUSEMENTS
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2034830
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Patent number 2,034,830
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Issue date Mar 24, 1936
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A63 - SPORTS GAMES AMUSEMENTS