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Roller skate
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Patent number D325417
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Issue date Apr 14, 1992
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Olson; Scott B.
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George E. McNamara
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D21 - Games, toys, and sports goods
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Ice skate
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Patent number D325416
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Issue date Apr 14, 1992
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Olson; Scott B.
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Scott B. Olson
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D21 - Games, toys, and sports goods
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Roller skate
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Patent number D325418
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Issue date Apr 14, 1992
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Olson; Scott B.
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George E. McNamara
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D21 - Games, toys, and sports goods
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Skate assembly
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Patent number 4,932,675
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Issue date Jun 12, 1990
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Olson; Scott B.
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Scott B. Olson
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A63 - SPORTS GAMES AMUSEMENTS