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Noise barrier wall
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Patent number 6,019,189
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Issue date Feb 1, 2000
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Bridgestone Corporation
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Hiroshi Shima
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Noise control apparatus
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Patent number 6,006,858
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Issue date Dec 28, 1999
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Bridgestone Corporation
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Hiroshi Shima
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Soundproof wall
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Patent number 5,739,482
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Issue date Apr 14, 1998
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Bridgestone Corporation
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Hiroshi Shima
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Soundproof wall
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Patent number 5,678,364
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Issue date Oct 21, 1997
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Bridgestone Corporation
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Hiroshi Shima
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Noise reducing apparatus
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Patent number 5,168,130
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Issue date Dec 1, 1992
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Bridgestone Corporation
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Hiroshi Shima
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Noise reducing device for printer
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Patent number 5,121,811
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Issue date Jun 16, 1992
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Bridgestone Corporation
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Hiroshi Shima
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS