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Calcination apparatus
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Patent number 5,011,668
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Issue date Apr 30, 1991
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United States Gypsum Company
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David J. Ball
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Heat reclamation apparatus
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Patent number 5,007,825
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Issue date Apr 16, 1991
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Robert M. Williams
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Calcination apparatus
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Patent number 4,915,623
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Issue date Apr 10, 1990
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United States Gypsum Company
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David J. Ball
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Submerged combustion calcination
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Patent number 4,744,961
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Issue date May 17, 1988
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United States Gypsum Company
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Larbi Bounini
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Submerged combustion calcination
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Patent number 4,626,199
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Issue date Dec 2, 1986
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United States Gypsum Company
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Larbi Bounini
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Calcining calcium sulphate dihydrate
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Patent number 4,176,157
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Issue date Nov 27, 1979
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BPB Industries Limited
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James S. George
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3901645
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Patent number 3,901,645
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Issue date Aug 26, 1975
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3378246
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Patent number 3,378,246
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Issue date Apr 16, 1968
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3307915
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Patent number 3,307,915
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Issue date Mar 7, 1967
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3236509
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Patent number 3,236,509
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Issue date Feb 22, 1966
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2290805
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Patent number 2,290,805
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Issue date Jul 21, 1942
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES