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2624928
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Patent number 2,624,928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1985115
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Patent number 1,985,115
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Issue date Dec 18, 1934
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B28 - WORKING CEMENT, CLAY, OR STONE
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1891744
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Patent number 1,891,744
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Issue date Dec 20, 1932
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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1863839
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Patent number 1,863,839
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Issue date Jun 21, 1932
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B28 - WORKING CEMENT, CLAY, OR STONE
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1849889
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Patent number 1,849,889
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Issue date Mar 15, 1932
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B28 - WORKING CEMENT, CLAY, OR STONE
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1798505
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Patent number 1,798,505
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Issue date Mar 31, 1931
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1709755
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Patent number 1,709,755
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Issue date Apr 16, 1929
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B28 - WORKING CEMENT, CLAY, OR STONE
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1692355
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Patent number 1,692,355
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Issue date Nov 20, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1671325
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Patent number 1,671,325
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Issue date May 29, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1671326
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Patent number 1,671,326
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Issue date May 29, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1652381
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Patent number 1,652,381
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Issue date Dec 13, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1651420
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Patent number 1,651,420
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Issue date Dec 6, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1582735
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Patent number 1,582,735
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Issue date Apr 27, 1926
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E04 - BUILDING
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1486056
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Patent number 1,486,056
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Issue date Mar 4, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1481159
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Patent number 1,481,159
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Issue date Jan 15, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1419079
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Patent number 1,419,079
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Issue date Jun 6, 1922
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E04 - BUILDING
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1399325
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Patent number 1,399,325
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B28 - WORKING CEMENT, CLAY, OR STONE
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1274987
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Patent number 1,274,987
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Issue date Aug 6, 1918
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1212840
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Patent number 1,212,840
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Issue date Jan 16, 1917
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1131705
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1102841
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1071600
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1054670
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E04 - BUILDING
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986798
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B32 - LAYERED PRODUCTS
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978003
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Patent number 978,003
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Issue date Dec 6, 1910
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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965004
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Patent number 965,004
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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940041
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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901833
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Patent number 901,833
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E04 - BUILDING
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872098
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E04 - BUILDING