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Hydration means
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Patent number 4,818,202
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Issue date Apr 4, 1989
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C. G. Bevan Associates Limited
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Christopher G. Bevan
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B28 - WORKING CEMENT, CLAY, OR STONE
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Moulding of construction products
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Patent number 4,524,039
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Issue date Jun 18, 1985
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C. G. Bevan Associates Limited
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Christopher G. Bevan
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B28 - WORKING CEMENT, CLAY, OR STONE
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3914359
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Patent number 3,914,359
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Issue date Oct 21, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3770859
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Patent number 3,770,859
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Issue date Nov 6, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3737265
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Patent number 3,737,265
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Issue date Jun 5, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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2944291
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Patent number 2,944,291
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Issue date Jul 12, 1960
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B28 - WORKING CEMENT, CLAY, OR STONE
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2446782
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Patent number 2,446,782
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Issue date Aug 10, 1948
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B28 - WORKING CEMENT, CLAY, OR STONE
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2445210
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Patent number 2,445,210
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Issue date Jul 13, 1948
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B28 - WORKING CEMENT, CLAY, OR STONE
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2295155
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Patent number 2,295,155
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Issue date Sep 8, 1942
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B28 - WORKING CEMENT, CLAY, OR STONE
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2281591
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Patent number 2,281,591
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Issue date May 5, 1942
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B28 - WORKING CEMENT, CLAY, OR STONE
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2276869
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Patent number 2,276,869
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Issue date Mar 17, 1942
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B28 - WORKING CEMENT, CLAY, OR STONE
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2268965
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Patent number 2,268,965
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Issue date Jan 6, 1942
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B28 - WORKING CEMENT, CLAY, OR STONE
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2230880
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Patent number 2,230,880
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Issue date Feb 4, 1941
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B28 - WORKING CEMENT, CLAY, OR STONE