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Polymer protected component
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Patent number 6,210,510
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Issue date Apr 3, 2001
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International Business Machines Corporation
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Frederick William Kern
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Method of making polyfluoroorgano composites
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Patent number 6,020,033
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Issue date Feb 1, 2000
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International Business Machines Corporation
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Frederick William Kern
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Polymer protected component
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Patent number 5,996,601
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Issue date Dec 7, 1999
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International Business Machines Corporation
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Frederick William Kern
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Polymer protected component
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Patent number 5,868,882
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Issue date Feb 9, 1999
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International Business Machines Corporation
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Frederick William Kern
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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