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Concrete mixing system
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Patent number 8,262,278
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Issue date Sep 11, 2012
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Mortrex LLC
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Troy J. Yanoff
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B28 - WORKING CEMENT, CLAY, OR STONE
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Portable mixer
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Patent number 7,128,463
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Issue date Oct 31, 2006
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Thomas K. Hong
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B28 - WORKING CEMENT, CLAY, OR STONE
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Flowable material mixing bag
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Patent number 6,953,277
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Issue date Oct 11, 2005
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Banana Bag Limited
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Paul Howard Karslake
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B28 - WORKING CEMENT, CLAY, OR STONE
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Mixing hoe and blade
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Patent number 6,564,881
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Issue date May 20, 2003
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John P. Murtagh
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B28 - WORKING CEMENT, CLAY, OR STONE
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Concrete mixing hoe
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Patent number 6,412,569
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Issue date Jul 2, 2002
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Carlyle Webb
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B28 - WORKING CEMENT, CLAY, OR STONE
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-
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Mixing mat for concrete
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Patent number 5,743,636
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Issue date Apr 28, 1998
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Walter L. Payne
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B28 - WORKING CEMENT, CLAY, OR STONE
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3860219
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Patent number 3,860,219
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Issue date Jan 14, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3638923
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Patent number 3,638,923
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Issue date Feb 1, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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3389893
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Patent number 3,389,893
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Issue date Jun 25, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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1863029
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Patent number 1,863,029
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Issue date Jun 14, 1932
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B28 - WORKING CEMENT, CLAY, OR STONE
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1780940
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Patent number 1,780,940
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Issue date Nov 11, 1930
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B28 - WORKING CEMENT, CLAY, OR STONE
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1728086
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Patent number 1,728,086
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Issue date Sep 10, 1929
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B28 - WORKING CEMENT, CLAY, OR STONE
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1633682
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Patent number 1,633,682
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Issue date Jun 28, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1621345
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Patent number 1,621,345
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Issue date Mar 15, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1582048
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Patent number 1,582,048
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Issue date Apr 27, 1926
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B28 - WORKING CEMENT, CLAY, OR STONE
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1505263
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Patent number 1,505,263
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Issue date Aug 19, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1460571
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Patent number 1,460,571
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Issue date Jul 3, 1923
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B28 - WORKING CEMENT, CLAY, OR STONE
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1453634
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Patent number 1,453,634
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Issue date May 1, 1923
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B28 - WORKING CEMENT, CLAY, OR STONE
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1327917
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Patent number 1,327,917
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Issue date Jan 13, 1920
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B28 - WORKING CEMENT, CLAY, OR STONE
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1144160
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Patent number 1,144,160
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Issue date Jun 22, 1915
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B28 - WORKING CEMENT, CLAY, OR STONE
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1103484
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Patent number 1,103,484
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Issue date Jul 14, 1914
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B28 - WORKING CEMENT, CLAY, OR STONE