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Game board
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Patent number 5,203,571
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Issue date Apr 20, 1993
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Roland Fischer
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A63 - SPORTS GAMES AMUSEMENTS
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Board game box
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Patent number 5,145,185
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Issue date Sep 8, 1992
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Wan-Chuan Yu
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A63 - SPORTS GAMES AMUSEMENTS
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Electronic game apparatus
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Patent number 5,129,654
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Issue date Jul 14, 1992
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Brehn Corporation
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Bruce F. Bogner
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A63 - SPORTS GAMES AMUSEMENTS
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Game apparatus
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Patent number 4,940,242
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Issue date Jul 10, 1990
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Todd J. Tingley
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A63 - SPORTS GAMES AMUSEMENTS
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Backgammon score tower
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Patent number 4,877,247
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Issue date Oct 31, 1989
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Raymond L. Francis
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G07 - CHECKING-DEVICES
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Electronic backgammon
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Patent number 4,244,578
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Issue date Jan 13, 1981
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Walter L. Rosenzweig
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A63 - SPORTS GAMES AMUSEMENTS
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2722425
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Patent number 2,722,425
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Issue date Nov 1, 1955
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A63 - SPORTS GAMES AMUSEMENTS
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2306939
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Patent number 2,306,939
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Issue date Dec 29, 1942
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A63 - SPORTS GAMES AMUSEMENTS
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1953810
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Patent number 1,953,810
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Issue date Apr 3, 1934
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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636663
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Patent number 636,663
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Issue date Nov 7, 1899
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A63 - SPORTS GAMES AMUSEMENTS