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Golf ball
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Patent number 4,337,946
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Issue date Jul 6, 1982
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Toray Industries, Inc.
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Tasuku Saito
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A63 - SPORTS GAMES AMUSEMENTS
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Golf ball
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Patent number 4,337,947
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Issue date Jul 6, 1982
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Bridgestone Tire Co., Ltd.
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Tasuku Saito
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Golf ball
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Patent number 4,295,652
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Issue date Oct 20, 1981
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Bridgestone Tire Co., Ltd.
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Tasuku Saito
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A63 - SPORTS GAMES AMUSEMENTS