-
-
-
-
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3782680
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Patent number 3,782,680
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Issue date Jan 1, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3479704
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Patent number 3,479,704
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Issue date Nov 25, 1969
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B28 - WORKING CEMENT, CLAY, OR STONE
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3219308
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Patent number 3,219,308
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Issue date Nov 23, 1965
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3193242
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Patent number 3,193,242
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Issue date Jul 6, 1965
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E04 - BUILDING
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3166815
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Patent number 3,166,815
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Issue date Jan 26, 1965
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3132403
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Patent number 3,132,403
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Issue date May 12, 1964
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B28 - WORKING CEMENT, CLAY, OR STONE
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3109217
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Patent number 3,109,217
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Issue date Nov 5, 1963
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B28 - WORKING CEMENT, CLAY, OR STONE
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3071834
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Patent number 3,071,834
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Issue date Jan 8, 1963
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B28 - WORKING CEMENT, CLAY, OR STONE
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3071833
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Patent number 3,071,833
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Issue date Jan 8, 1963
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B28 - WORKING CEMENT, CLAY, OR STONE
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3059275
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Patent number 3,059,275
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Issue date Oct 23, 1962
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2985938
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Patent number 2,985,938
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Issue date May 30, 1961
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E04 - BUILDING
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2977657
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Patent number 2,977,657
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Issue date Apr 4, 1961
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B28 - WORKING CEMENT, CLAY, OR STONE
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2595286
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Patent number 2,595,286
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Issue date May 6, 1952
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E04 - BUILDING
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2155128
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Patent number 2,155,128
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Issue date Apr 18, 1939
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1846196
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Patent number 1,846,196
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Issue date Feb 23, 1932
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E04 - BUILDING
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1817757
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Patent number 1,817,757
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Issue date Aug 4, 1931
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E04 - BUILDING
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1807315
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Patent number 1,807,315
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Issue date May 26, 1931
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E04 - BUILDING
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1520849
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Patent number 1,520,849
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Issue date Dec 30, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1331096
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Patent number 1,331,096
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Issue date Feb 17, 1920
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E04 - BUILDING
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1295310
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Patent number 1,295,310
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Issue date Feb 25, 1919
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E04 - BUILDING
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1220083
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Patent number 1,220,083
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Issue date Mar 20, 1917
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E04 - BUILDING