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Puzzle pieces
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Patent number 9,855,493
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Issue date Jan 2, 2018
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Patty Pratt
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A63 - SPORTS GAMES AMUSEMENTS
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Puzzle game
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Patent number 5,439,220
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Issue date Aug 8, 1995
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Ronald F. Hendricks
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A63 - SPORTS GAMES AMUSEMENTS
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Puzzle apparatus
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Patent number 5,219,168
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Issue date Jun 15, 1993
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James E. Morris
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A63 - SPORTS GAMES AMUSEMENTS
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Partner puzzle game
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Patent number 4,205,850
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Issue date Jun 3, 1980
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Timothy J. Craig
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A63 - SPORTS GAMES AMUSEMENTS
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Celestial display device
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Patent number 4,051,607
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Issue date Oct 4, 1977
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Roger J. Sullivan
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS