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-
-
-
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-
-
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3023072
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Patent number 3,023,072
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Issue date Feb 27, 1962
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2947640
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Patent number 2,947,640
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Issue date Aug 2, 1960
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2717221
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Patent number 2,717,221
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Issue date Sep 6, 1955
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2647977
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Patent number 2,647,977
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Issue date Aug 4, 1953
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2599582
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Patent number 2,599,582
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Issue date Jun 10, 1952
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2423261
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Patent number 2,423,261
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Issue date Jul 1, 1947
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2346930
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Patent number 2,346,930
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Issue date Apr 18, 1944
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2276415
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Patent number 2,276,415
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Issue date Mar 17, 1942
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2200433
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Patent number 2,200,433
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Issue date May 14, 1940
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2163642
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Patent number 2,163,642
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Issue date Jun 27, 1939
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1970163
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Patent number 1,970,163
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Issue date Aug 14, 1934
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1874170
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Patent number 1,874,170
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Issue date Aug 30, 1932
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1791234
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Patent number 1,791,234
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Issue date Feb 3, 1931
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B28 - WORKING CEMENT, CLAY, OR STONE
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1788837
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Patent number 1,788,837
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Issue date Jan 13, 1931
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1751339
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Patent number 1,751,339
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Issue date Mar 18, 1930
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1685451
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Patent number 1,685,451
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Issue date Sep 25, 1928
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1674961
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Patent number 1,674,961
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Issue date Jun 26, 1928
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1667854
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Patent number 1,667,854
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Issue date May 1, 1928
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1620940
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Patent number 1,620,940
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Issue date Mar 15, 1927
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1594631
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Patent number 1,594,631
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Issue date Aug 3, 1926
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1594632
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Patent number 1,594,632
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Issue date Aug 3, 1926
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1572475
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Patent number 1,572,475
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Issue date Feb 9, 1926
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B22 - CASTING POWDER METALLURGY