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Piano soundboard and method of making same
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Patent number 4,391,177
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Issue date Jul 5, 1983
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The Wurlitzer Company
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Stanley A. Grajek
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Piano soundboard and method of making same
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Patent number 4,361,458
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Issue date Nov 30, 1982
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The Wurlitzer Company
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Stanley A. Grajek
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Piano soundboard
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Patent number 4,280,389
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Issue date Jul 28, 1981
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The Wurlitzer Company
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George S. Klaiber
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Piano soundboard
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Patent number 4,248,124
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Issue date Feb 3, 1981
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The Wurlitzer Company
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George S. Klaiber
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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