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Refined prestressed concrete elements
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Patent number 11,773,589
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Issue date Oct 3, 2023
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ADVANCED BRIDGE CONSTRUCTION TECHNOLOGIES, INC
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Mathew Chirappuram Royce
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B28 - WORKING CEMENT, CLAY, OR STONE
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Refined prestressed concrete elements
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Patent number 11,414,863
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Issue date Aug 16, 2022
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ADVANCED BRIDGE CONSTRUCTION TECHNOLOGIES, INC
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Mathew Chirappuram Royce
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B28 - WORKING CEMENT, CLAY, OR STONE
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3871953
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Patent number 3,871,953
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Issue date Mar 18, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3869344
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Patent number 3,869,344
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Issue date Mar 4, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3639973
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Patent number 3,639,973
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Issue date Feb 8, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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3577504
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Patent number 3,577,504
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Issue date May 4, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE
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3561179
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Patent number 3,561,179
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Issue date Feb 9, 1971
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B28 - WORKING CEMENT, CLAY, OR STONE
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3548485
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Patent number 3,548,485
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Issue date Dec 22, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3437316
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Patent number 3,437,316
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Issue date Apr 8, 1969
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B28 - WORKING CEMENT, CLAY, OR STONE
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3363370
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Patent number 3,363,370
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Issue date Jan 16, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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3341176
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Patent number 3,341,176
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Issue date Sep 12, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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3283457
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Patent number 3,283,457
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Issue date Nov 8, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3271497
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Patent number 3,271,497
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Issue date Sep 6, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3237912
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Patent number 3,237,912
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Issue date Mar 1, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE
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3172932
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Patent number 3,172,932
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Issue date Mar 9, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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2897570
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Patent number 2,897,570
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Issue date Aug 4, 1959
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B28 - WORKING CEMENT, CLAY, OR STONE
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2852991
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Patent number 2,852,991
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Issue date Sep 23, 1958
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B28 - WORKING CEMENT, CLAY, OR STONE
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2826800
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Patent number 2,826,800
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Issue date Mar 18, 1958
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B28 - WORKING CEMENT, CLAY, OR STONE
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2804893
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Patent number 2,804,893
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Issue date Sep 3, 1957
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B28 - WORKING CEMENT, CLAY, OR STONE
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2645115
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Patent number 2,645,115
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Issue date Jul 14, 1953
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B28 - WORKING CEMENT, CLAY, OR STONE
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2644497
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Patent number 2,644,497
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Issue date Jul 7, 1953
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B28 - WORKING CEMENT, CLAY, OR STONE
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2631450
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Patent number 2,631,450
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Issue date Mar 17, 1953
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B28 - WORKING CEMENT, CLAY, OR STONE
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2596495
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Patent number 2,596,495
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Issue date May 13, 1952
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B28 - WORKING CEMENT, CLAY, OR STONE
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2483175
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Patent number 2,483,175
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Issue date Sep 27, 1949
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B28 - WORKING CEMENT, CLAY, OR STONE