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Hue sequence device
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Patent number 4,796,888
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Issue date Jan 10, 1989
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Nigel Louez
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A63 - SPORTS GAMES AMUSEMENTS
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1787521
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Patent number 1,787,521
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Issue date Jan 6, 1931
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A63 - SPORTS GAMES AMUSEMENTS
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1443346
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Patent number 1,443,346
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Issue date Jan 30, 1923
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A63 - SPORTS GAMES AMUSEMENTS
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537887
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Patent number 537,887
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Issue date Apr 23, 1895
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A63 - SPORTS GAMES AMUSEMENTS