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Batching system
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Patent number 4,810,159
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Issue date Mar 7, 1989
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Rudi Stegmuller
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B28 - WORKING CEMENT, CLAY, OR STONE
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3730396
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Patent number 3,730,396
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Issue date May 1, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3565288
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Patent number 3,565,288
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Issue date Feb 23, 1971
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B60 - VEHICLES IN GENERAL
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3455475
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Patent number 3,455,475
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Issue date Jul 15, 1969
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B60 - VEHICLES IN GENERAL
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3315929
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Patent number 3,315,929
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Issue date Apr 25, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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3260414
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Patent number 3,260,414
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Issue date Jul 12, 1966
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B60 - VEHICLES IN GENERAL
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3180601
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Patent number 3,180,601
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Issue date Apr 27, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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3029958
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Patent number 3,029,958
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Issue date Apr 17, 1962
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B28 - WORKING CEMENT, CLAY, OR STONE