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Drum mixer
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Patent number 8,864,366
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Issue date Oct 21, 2014
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Kurt Himmelfreundpointner
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B60 - VEHICLES IN GENERAL
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Mixing and pumping vehicle
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Patent number 6,488,088
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Issue date Dec 3, 2002
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Schlumberger Technology Corporation
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Harjit S. Kohli
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B28 - WORKING CEMENT, CLAY, OR STONE
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Truck mixer
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Patent number 4,311,396
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Issue date Jan 19, 1982
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Compagnia Italiana Forme Acciaio S.p.A.
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Alfredo Brandi
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B28 - WORKING CEMENT, CLAY, OR STONE
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Concrete pumping apparatus
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Patent number 4,199,002
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Issue date Apr 22, 1980
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Worthington S.p.A.
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Enos Fumagalli
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B60 - VEHICLES IN GENERAL
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3901485
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Patent number 3,901,485
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Issue date Aug 26, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3871587
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Patent number 3,871,587
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Issue date Mar 18, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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1969324
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Patent number 1,969,324
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Issue date Aug 7, 1934
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B28 - WORKING CEMENT, CLAY, OR STONE