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Manufacturing platform
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Patent number 6,767,000
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Issue date Jul 27, 2004
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Poul Heide
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B28 - WORKING CEMENT, CLAY, OR STONE
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3827666
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Patent number 3,827,666
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Issue date Aug 6, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3792832
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Patent number 3,792,832
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Issue date Feb 19, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3761046
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Patent number 3,761,046
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Issue date Sep 25, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3743235
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Patent number 3,743,235
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Issue date Jul 3, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3724805
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Patent number 3,724,805
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Issue date Apr 3, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3640658
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Patent number 3,640,658
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Issue date Feb 8, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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2701904
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Patent number 2,701,904
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Issue date Feb 15, 1955
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B28 - WORKING CEMENT, CLAY, OR STONE
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2655710
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Patent number 2,655,710
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Issue date Oct 20, 1953
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B28 - WORKING CEMENT, CLAY, OR STONE
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2460532
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Patent number 2,460,532
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Issue date Feb 1, 1949
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B28 - WORKING CEMENT, CLAY, OR STONE
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1623625
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Patent number 1,623,625
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Issue date Apr 5, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE