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Anechoic chamber
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Patent number 6,371,240
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Issue date Apr 16, 2002
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Austin Acoustic Systems, Inc.
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Robert W. Hayes
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Acoustic board
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Patent number 6,352,134
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Issue date Mar 5, 2002
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Chao Hsiang Wang
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Acoustic board
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Patent number 6,125,965
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Issue date Oct 3, 2000
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Chao-Shun Wang
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Privacy enclosure
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Patent number 5,974,757
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Issue date Nov 2, 1999
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3M Innovative Properties Company
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Leland R. Whitney
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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Plate resonator
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Patent number 5,975,238
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Issue date Nov 2, 1999
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Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
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Helmut Fuchs
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Sound enclosure
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Patent number 5,929,394
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Issue date Jul 27, 1999
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Westerbeke Corporation
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John H. Westerbeke
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Insulating tile
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Patent number 5,845,459
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Issue date Dec 8, 1998
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Roger B. Nathan
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E04 - BUILDING
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Privacy enclosure
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Patent number 5,813,180
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Issue date Sep 29, 1998
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Minnesota Mining and Manufacturing Company
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Leland R. Whitney
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E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
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False ceiling
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Patent number 5,740,649
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Issue date Apr 21, 1998
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Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
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Helmut Fuchs
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E04 - BUILDING
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Acoustical panel system
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Patent number 5,641,950
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Issue date Jun 24, 1997
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Quilite International Limited Liability Company
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Rodman W. Kotter
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Sound absorber
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Patent number 5,512,715
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Issue date Apr 30, 1996
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Matsushita Electric Industrial Co., Ltd.
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Hiroyuki Takewa
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...