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Demoulding apparatus
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Patent number 5,783,135
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Issue date Jul 21, 1998
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Camas UK Limited
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Alan John Smith
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B28 - WORKING CEMENT, CLAY, OR STONE
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Mold ejector multiplier
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Patent number 4,050,666
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Issue date Sep 27, 1977
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Jake W. Van Tichelt
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B28 - WORKING CEMENT, CLAY, OR STONE
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3822861
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Patent number 3,822,861
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Issue date Jul 9, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3154831
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Patent number 3,154,831
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Issue date Nov 3, 1964
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B28 - WORKING CEMENT, CLAY, OR STONE
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2732296
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Patent number 2,732,296
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Issue date Jan 24, 1956
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B28 - WORKING CEMENT, CLAY, OR STONE
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2713710
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Patent number 2,713,710
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Issue date Jul 26, 1955
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B28 - WORKING CEMENT, CLAY, OR STONE
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2100479
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Patent number 2,100,479
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Issue date Nov 30, 1937
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B28 - WORKING CEMENT, CLAY, OR STONE