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Construction toy block
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Patent number D307774
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Issue date May 8, 1990
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Toy construction assembly
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Patent number 4,919,635
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Issue date Apr 24, 1990
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The Ritvik Group Inc.
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Vic Bertrand
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A63 - SPORTS GAMES AMUSEMENTS
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-
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Toy construction block
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Patent number D303689
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Issue date Sep 26, 1989
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Pictorial block puzzle
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Patent number 4,809,980
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Issue date Mar 7, 1989
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The Ritvik Group Inc.
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Vic. Bertrand
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A63 - SPORTS GAMES AMUSEMENTS
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Toy construction piece
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Patent number D297954
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Issue date Oct 4, 1988
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Construction toy assembly
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Patent number 4,740,189
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Issue date Apr 26, 1988
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The Ritvik Group, Inc.
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Vic Bertrand
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A63 - SPORTS GAMES AMUSEMENTS
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Toy construction piece
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Patent number D294373
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Issue date Feb 23, 1988
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Toy construction figure
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Patent number D291585
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Issue date Aug 25, 1987
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Toy construction piece
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Patent number D291099
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Issue date Jul 28, 1987
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Toy construction block
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Patent number D290720
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Issue date Jul 7, 1987
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods
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Toy construction block
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Patent number D290629
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Issue date Jun 30, 1987
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The Ritvik Group Inc.
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Vic Bertrand
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D21 - Games, toys, and sports goods