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Water repellent aramids
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Patent number 5,310,824
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Issue date May 10, 1994
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E. I. Du Pont de Nemours and Company
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Robert R. Burch
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Mineral products
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Patent number 4,219,609
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Issue date Aug 26, 1980
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Colin S. Cundy
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3877137
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Patent number 3,877,137
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Issue date Apr 15, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2067586
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Patent number 2,067,586
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Issue date Jan 12, 1937
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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1982314
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Patent number 1,982,314
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Issue date Nov 27, 1934
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B28 - WORKING CEMENT, CLAY, OR STONE
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1946914
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Patent number 1,946,914
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Issue date Feb 13, 1934
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E04 - BUILDING
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1796269
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Patent number 1,796,269
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Issue date Mar 10, 1931
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E04 - BUILDING
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1774812
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Patent number 1,774,812
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Issue date Sep 2, 1930
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1772999
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Patent number 1,772,999
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Issue date Aug 12, 1930
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1726600
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Patent number 1,726,600
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Issue date Sep 3, 1929
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1661832
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Patent number 1,661,832
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Issue date Mar 6, 1928
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1644965
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Patent number 1,644,965
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Issue date Oct 11, 1927
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1629103
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Patent number 1,629,103
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Issue date May 17, 1927
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1589512
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Patent number 1,589,512
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Issue date Jun 22, 1926
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1587698
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Patent number 1,587,698
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Issue date Jun 8, 1926
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B44 - DECORATIVE ARTS
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1550077
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Patent number 1,550,077
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Issue date Aug 18, 1925
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1539193
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Patent number 1,539,193
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Issue date May 26, 1925
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1535093
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Patent number 1,535,093
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Issue date Apr 28, 1925
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H01 - BASIC ELECTRIC ELEMENTS
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1300591
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Patent number 1,300,591
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Issue date Apr 15, 1919
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1270450
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Patent number 1,270,450
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Issue date Jun 25, 1918
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1134573
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Patent number 1,134,573
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Issue date Apr 6, 1915
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES