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Concrete production plant
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Patent number 8,562,202
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Issue date Oct 22, 2013
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Christian Contamin
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B28 - WORKING CEMENT, CLAY, OR STONE
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Agitator loading system
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Patent number 7,427,182
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Issue date Sep 23, 2008
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Intray Consolidated Pty. Ltd.
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Michael N. Galijan
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B28 - WORKING CEMENT, CLAY, OR STONE
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Aggregate handling system
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Patent number 7,351,025
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Issue date Apr 1, 2008
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Intray Consolidated Pty. Ltd.
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Michael N. Galijan
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B28 - WORKING CEMENT, CLAY, OR STONE
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Color blending apparatus
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Patent number 6,382,947
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Issue date May 7, 2002
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Hengestone Holdings, Inc.
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Edward J. Bryant
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B28 - WORKING CEMENT, CLAY, OR STONE
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3701409
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Patent number 3,701,409
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Issue date Oct 31, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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3617031
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Patent number 3,617,031
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Issue date Nov 2, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE
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3380717
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Patent number 3,380,717
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Issue date Apr 30, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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3350070
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Patent number 3,350,070
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Issue date Oct 31, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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2737315
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Patent number 2,737,315
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Issue date Mar 6, 1956
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B28 - WORKING CEMENT, CLAY, OR STONE
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2138172
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Patent number 2,138,172
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Issue date Nov 29, 1938
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B28 - WORKING CEMENT, CLAY, OR STONE
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2127120
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Patent number 2,127,120
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Issue date Aug 16, 1938
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B28 - WORKING CEMENT, CLAY, OR STONE
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1872283
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Patent number 1,872,283
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Issue date Aug 16, 1932
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B28 - WORKING CEMENT, CLAY, OR STONE