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Forming shaped abrasive particles
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Patent number 8,753,558
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Issue date Jun 17, 2014
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Saint-Gobain Ceramics & Plastics, Inc.
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Michael D. Kavanaugh
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Reclamation of leftover concrete
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Patent number 5,766,524
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Issue date Jun 16, 1998
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Governors of the University of Alberta
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Mohammed M. S. Rashwan
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B28 - WORKING CEMENT, CLAY, OR STONE
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Brick molding machine
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Patent number 4,105,383
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Issue date Aug 8, 1978
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David Jack Hanson
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B28 - WORKING CEMENT, CLAY, OR STONE
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3847267
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Patent number 3,847,267
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Issue date Nov 12, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3751205
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Patent number 3,751,205
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Issue date Aug 7, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3724988
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Patent number 3,724,988
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Issue date Apr 3, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3430309
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Patent number 3,430,309
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Issue date Mar 4, 1969
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B28 - WORKING CEMENT, CLAY, OR STONE
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3413442
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Patent number 3,413,442
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Issue date Nov 26, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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3257701
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Patent number 3,257,701
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Issue date Jun 28, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3257492
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Patent number 3,257,492
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Issue date Jun 21, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3193903
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Patent number 3,193,903
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Issue date Jul 13, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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3176372
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Patent number 3,176,372
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Issue date Apr 6, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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3122812
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Patent number 3,122,812
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Issue date Mar 3, 1964
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B28 - WORKING CEMENT, CLAY, OR STONE
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3002249
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Patent number 3,002,249
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Issue date Oct 3, 1961
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B28 - WORKING CEMENT, CLAY, OR STONE
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2983983
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Patent number 2,983,983
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Issue date May 16, 1961
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B28 - WORKING CEMENT, CLAY, OR STONE
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2965949
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Patent number 2,965,949
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Issue date Dec 27, 1960
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B28 - WORKING CEMENT, CLAY, OR STONE