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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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Electronic percussion instrument
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Patent number 3,956,959
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Issue date May 18, 1976
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Sanyo Silicon Electronics Co., Ltd.
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Tomoo Ebihara
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3763305
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Patent number 3,763,305
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Issue date Oct 2, 1973
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3651241
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Patent number 3,651,241
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Issue date Mar 21, 1972
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3649736
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Patent number 3,649,736
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Issue date Mar 14, 1972
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3637914
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Patent number 3,637,914
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Issue date Jan 25, 1972
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G10 - MUSICAL INSTRUMENTS ACOUSTICS