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Game playing piece
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Patent number 5,137,281
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Issue date Aug 11, 1992
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Roger W. Lehmann
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A63 - SPORTS GAMES AMUSEMENTS
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Stackable blocks
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Patent number 4,877,407
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Issue date Oct 31, 1989
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Benjamin F. Du Pont
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Benjamin F. du Pont
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A63 - SPORTS GAMES AMUSEMENTS
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3409298
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Patent number 3,409,298
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Issue date Nov 5, 1968
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A63 - SPORTS GAMES AMUSEMENTS
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3400932
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Patent number 3,400,932
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Issue date Sep 10, 1968
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A63 - SPORTS GAMES AMUSEMENTS
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2409373
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Patent number 2,409,373
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Issue date Oct 15, 1946
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A63 - SPORTS GAMES AMUSEMENTS
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2262891
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Patent number 2,262,891
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Issue date Nov 18, 1941
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A63 - SPORTS GAMES AMUSEMENTS
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1982633
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Patent number 1,982,633
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Issue date Dec 4, 1934
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A63 - SPORTS GAMES AMUSEMENTS
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1570517
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Patent number 1,570,517
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Issue date Jan 19, 1926
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A63 - SPORTS GAMES AMUSEMENTS
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1425087
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Patent number 1,425,087
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Issue date Aug 8, 1922
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A63 - SPORTS GAMES AMUSEMENTS
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1402596
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Patent number 1,402,596
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Issue date Jan 3, 1922
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A63 - SPORTS GAMES AMUSEMENTS
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1388265
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Patent number 1,388,265
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Issue date Aug 23, 1921
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A63 - SPORTS GAMES AMUSEMENTS
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1387241
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Patent number 1,387,241
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Issue date Aug 9, 1921
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A63 - SPORTS GAMES AMUSEMENTS
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1373312
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Patent number 1,373,312
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Issue date Mar 29, 1921
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A63 - SPORTS GAMES AMUSEMENTS