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Agitating and mixing device
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Patent number 6,910,801
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Issue date Jun 28, 2005
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Umeda Industry Co., Ltd.
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Hiroyasu Sasaki
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B28 - WORKING CEMENT, CLAY, OR STONE
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Turbine mixer
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Patent number 4,878,759
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Issue date Nov 7, 1989
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Monier Redland Limited
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Robert K. Tomlinson
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B28 - WORKING CEMENT, CLAY, OR STONE
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Turbine mixer
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Patent number 4,655,602
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Issue date Apr 7, 1987
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Monier Limited
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Robert K. Tomlinson
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B28 - WORKING CEMENT, CLAY, OR STONE
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2989291
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Patent number 2,989,291
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Issue date Jun 20, 1961
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B28 - WORKING CEMENT, CLAY, OR STONE
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2826794
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Patent number 2,826,794
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Issue date Mar 18, 1958
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B28 - WORKING CEMENT, CLAY, OR STONE
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1694137
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Patent number 1,694,137
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Issue date Dec 4, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1466639
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Patent number 1,466,639
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Issue date Aug 28, 1923
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B28 - WORKING CEMENT, CLAY, OR STONE