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Concrete mold form
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Patent number 11,701,795
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Issue date Jul 18, 2023
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Hamilton Form Company, Ltd.
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Joel A. Whalen
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B28 - WORKING CEMENT, CLAY, OR STONE
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-
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Floor laying arrangement
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Patent number 4,598,517
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Issue date Jul 8, 1986
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Tremix AB
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Yngve Alvarsson
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B28 - WORKING CEMENT, CLAY, OR STONE
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3915422
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Patent number 3,915,422
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Issue date Oct 28, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3491417
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Patent number 3,491,417
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Issue date Jan 27, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3121333
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Patent number 3,121,333
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Issue date Feb 18, 1964
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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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3030688
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Patent number 3,030,688
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Issue date Apr 24, 1962
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B28 - WORKING CEMENT, CLAY, OR STONE
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2917802
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Patent number 2,917,802
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Issue date Dec 22, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2916795
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Patent number 2,916,795
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Issue date Dec 15, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2883728
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Patent number 2,883,728
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Issue date Apr 28, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2874442
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Patent number 2,874,442
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Issue date Feb 24, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2783520
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Patent number 2,783,520
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Issue date Mar 5, 1957
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B28 - WORKING CEMENT, CLAY, OR STONE
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2771656
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Patent number 2,771,656
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Issue date Nov 27, 1956
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B28 - WORKING CEMENT, CLAY, OR STONE
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2659123
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Patent number 2,659,123
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Issue date Nov 17, 1953
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B28 - WORKING CEMENT, CLAY, OR STONE
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2499532
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Patent number 2,499,532
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Issue date Mar 7, 1950
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B28 - WORKING CEMENT, CLAY, OR STONE
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2239195
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Patent number 2,239,195
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Issue date Apr 22, 1941
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B28 - WORKING CEMENT, CLAY, OR STONE
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1985575
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Patent number 1,985,575
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Issue date Dec 25, 1934
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B28 - WORKING CEMENT, CLAY, OR STONE
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1657011
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Patent number 1,657,011
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Issue date Jan 24, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1585421
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Patent number 1,585,421
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Issue date May 18, 1926
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B28 - WORKING CEMENT, CLAY, OR STONE
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1436033
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Patent number 1,436,033
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Issue date Nov 21, 1922
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B28 - WORKING CEMENT, CLAY, OR STONE
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1431635
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Patent number 1,431,635
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Issue date Oct 10, 1922
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B28 - WORKING CEMENT, CLAY, OR STONE
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1342373
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Patent number 1,342,373
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Issue date Jun 1, 1920
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B28 - WORKING CEMENT, CLAY, OR STONE