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Rapper device
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Patent number 8,656,567
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Issue date Feb 25, 2014
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Shell Oil Company
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Alfons Heitmann
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B08 - CLEANING
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Rapper device
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Patent number 8,621,732
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Issue date Jan 7, 2014
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Shell Oil Company
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Alfons Heitmann
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B08 - CLEANING
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Pipe joint cleaner
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Patent number 5,363,530
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Issue date Nov 15, 1994
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Jeffery D. Dunn
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B08 - CLEANING
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Sweeper
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Patent number 5,157,803
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Issue date Oct 27, 1992
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Shizuo Sagawa
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B08 - CLEANING
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Chip removing device
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Patent number 4,765,016
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Issue date Aug 23, 1988
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Akebono Brake Industry Co., Ltd.
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Yukio Iwata
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Wheel bore cleaner
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Patent number 4,723,335
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Issue date Feb 9, 1988
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Allied Automation Systems, Inc.
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John P. Kane
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3906577
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Patent number 3,906,577
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Issue date Sep 23, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3763510
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Patent number 3,763,510
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Issue date Oct 9, 1973
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3148445
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Patent number 3,148,445
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Issue date Sep 15, 1964
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3056700
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Patent number 3,056,700
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Issue date Oct 2, 1962
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F24 - HEATING RANGES VENTILATING
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2199109
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Patent number 2,199,109
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Issue date Apr 30, 1940
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2150806
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Patent number 2,150,806
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Issue date Mar 14, 1939
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F28 - HEAT EXCHANGE IN GENERAL
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2073811
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Patent number 2,073,811
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Issue date Mar 16, 1937
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES