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Acoustic panel assembly
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Patent number 10,127,900
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Issue date Nov 13, 2018
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Jim Melhart Piano and Organ Company
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Jimmie Ray Melhart
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Portable acoustic shell
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Patent number 5,651,405
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Issue date Jul 29, 1997
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Wenger Corporation
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David R. Boeddeker
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E04 - BUILDING
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Panel support structure
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Patent number 5,115,608
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Issue date May 26, 1992
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Wenger Corporation
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Leslie R. Abraham
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E04 - BUILDING
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Concert shell
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Patent number 4,278,145
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Issue date Jul 14, 1981
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Robert A. Eade
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E04 - BUILDING
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Portable shell
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Patent number 4,241,777
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Issue date Dec 30, 1980
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Wenger Corporation
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Jerry A. Wenger
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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3908787
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Patent number 3,908,787
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Issue date Sep 30, 1975
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3630309
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Patent number 3,630,309
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Issue date Dec 28, 1971
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E04 - BUILDING
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3435909
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Patent number 3,435,909
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Issue date Apr 1, 1969
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3316999
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Patent number 3,316,999
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Issue date May 2, 1967
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G10 - MUSICAL INSTRUMENTS ACOUSTICS