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3606277
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Patent number 3,606,277
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Issue date Sep 20, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE
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3281126
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Patent number 3,281,126
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Issue date Oct 25, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3263800
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Patent number 3,263,800
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Issue date Aug 2, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3259261
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Patent number 3,259,261
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Issue date Jul 5, 1966
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B60 - VEHICLES IN GENERAL
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3198495
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Patent number 3,198,495
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Issue date Aug 3, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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3180628
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Patent number 3,180,628
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Issue date Apr 27, 1965
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B60 - VEHICLES IN GENERAL
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3133728
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Patent number 3,133,728
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Issue date May 19, 1964
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B28 - WORKING CEMENT, CLAY, OR STONE
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3126197
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Patent number 3,126,197
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Issue date Mar 24, 1964
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B28 - WORKING CEMENT, CLAY, OR STONE
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3062522
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Patent number 3,062,522
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Issue date Nov 6, 1962
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B28 - WORKING CEMENT, CLAY, OR STONE
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2544202
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Patent number 2,544,202
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Issue date Mar 6, 1951
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B60 - VEHICLES IN GENERAL
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2525574
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Patent number 2,525,574
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Issue date Oct 10, 1950
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B28 - WORKING CEMENT, CLAY, OR STONE
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2525573
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Patent number 2,525,573
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Issue date Oct 10, 1950
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B28 - WORKING CEMENT, CLAY, OR STONE
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1934116
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Patent number 1,934,116
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Issue date Nov 7, 1933
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B28 - WORKING CEMENT, CLAY, OR STONE
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1820954
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Patent number 1,820,954
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Issue date Sep 1, 1931
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B28 - WORKING CEMENT, CLAY, OR STONE
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1778837
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Patent number 1,778,837
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Issue date Oct 21, 1930
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B28 - WORKING CEMENT, CLAY, OR STONE
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1509055
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Patent number 1,509,055
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Issue date Sep 16, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1492061
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Patent number 1,492,061
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Issue date Apr 29, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE
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1295814
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Patent number 1,295,814
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Issue date Feb 25, 1919
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B28 - WORKING CEMENT, CLAY, OR STONE
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1097846
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Patent number 1,097,846
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Issue date May 26, 1914
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B28 - WORKING CEMENT, CLAY, OR STONE
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72440
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Patent number 72,440
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Issue date Dec 24, 1867
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B28 - WORKING CEMENT, CLAY, OR STONE