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Transparent puzzle
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Patent number 4,799,680
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Issue date Jan 24, 1989
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Deborah M. Weimar
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A63 - SPORTS GAMES AMUSEMENTS
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Game board doll
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Patent number 4,671,514
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Issue date Jun 9, 1987
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Brenda M. Wilson-Diehl
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A63 - SPORTS GAMES AMUSEMENTS
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Trading game
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Patent number 4,378,942
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Issue date Apr 5, 1983
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Paul J. Isaac
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A63 - SPORTS GAMES AMUSEMENTS
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3715810
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Patent number 3,715,810
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Issue date Feb 13, 1973
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS