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Wind-bell
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Patent number 4,693,162
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Issue date Sep 15, 1987
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Cheng F. Lee
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3581686
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Patent number 3,581,686
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Issue date Jun 1, 1971
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2236081
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Patent number 2,236,081
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Issue date Mar 25, 1941
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1745463
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Patent number 1,745,463
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Issue date Feb 4, 1930
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1527023
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Patent number 1,527,023
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Issue date Feb 17, 1925
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G10 - MUSICAL INSTRUMENTS ACOUSTICS