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Drive system for toy cars
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Patent number 4,453,712
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Issue date Jun 12, 1984
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The Refined Industry Company Limited
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Cheuk-Ming Lee
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A63 - SPORTS GAMES AMUSEMENTS
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Electric motor toy car
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Patent number 4,438,590
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Issue date Mar 27, 1984
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The Refined Industry Company, Limited
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Cheuk-Ming Lee
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A63 - SPORTS GAMES AMUSEMENTS
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Electrical toy vehicle tracks
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Patent number 4,372,489
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Issue date Feb 8, 1983
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The Refined Industry Company Limited
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Cheuk-Ming Lee
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A63 - SPORTS GAMES AMUSEMENTS