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Fiber optic musical instruments
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Patent number 4,442,750
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Issue date Apr 17, 1984
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Optical Technologies, Inc.
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George A. Bowley
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3833750
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Patent number 3,833,750
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Issue date Sep 3, 1974
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3591699
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Patent number 3,591,699
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Issue date Jul 6, 1971
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2984140
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Patent number 2,984,140
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Issue date May 16, 1961
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2494390
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Patent number 2,494,390
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Issue date Jan 10, 1950
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G10 - MUSICAL INSTRUMENTS ACOUSTICS