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Mono-shaft sports racquet
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Patent number 5,238,247
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Issue date Aug 24, 1993
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Prince Manufacturing, Inc.
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Stephen J. Davis
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A63 - SPORTS GAMES AMUSEMENTS
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Metal racket
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Patent number 5,219,166
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Issue date Jun 15, 1993
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Chen-chung Chang
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A63 - SPORTS GAMES AMUSEMENTS
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3083968
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Patent number 3,083,968
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Issue date Apr 2, 1963
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A63 - SPORTS GAMES AMUSEMENTS
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2224567
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Patent number 2,224,567
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Issue date Dec 10, 1940
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A63 - SPORTS GAMES AMUSEMENTS