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Track switch
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Patent number 11,203,366
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Issue date Dec 21, 2021
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Temur Maisuradze
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B61 - RAILWAYS
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Track-switching device and method
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Patent number 8,020,493
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Issue date Sep 20, 2011
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Universal City Studios LLC
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Steven C. Blum
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Railway frog system
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Patent number 5,354,018
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Issue date Oct 11, 1994
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Edwin deS. Snead
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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-
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3905568
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Patent number 3,905,568
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Issue date Sep 16, 1975
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3784134
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Patent number 3,784,134
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Issue date Jan 8, 1974
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3737657
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Patent number 3,737,657
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Issue date Jun 5, 1973
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3591799
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Patent number 3,591,799
-
Issue date Jul 6, 1971
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3538326
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Patent number 3,538,326
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Issue date Nov 3, 1970
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3518423
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Patent number 3,518,423
-
Issue date Jun 30, 1970
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2641690
-
Patent number 2,641,690
-
Issue date Jun 9, 1953
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2551951
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Patent number 2,551,951
-
Issue date May 8, 1951
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2508417
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Patent number 2,508,417
-
Issue date May 23, 1950
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2496098
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Patent number 2,496,098
-
Issue date Jan 31, 1950
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2265464
-
Patent number 2,265,464
-
Issue date Dec 9, 1941
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2011798
-
Patent number 2,011,798
-
Issue date Aug 20, 1935
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1885366
-
Patent number 1,885,366
-
Issue date Nov 1, 1932
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1825415
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Patent number 1,825,415
-
Issue date Sep 29, 1931
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1797933
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Patent number 1,797,933
-
Issue date Mar 24, 1931
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1761105
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Patent number 1,761,105
-
Issue date Jun 3, 1930
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1742974
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Patent number 1,742,974
-
Issue date Jan 7, 1930
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1729034
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Patent number 1,729,034
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Issue date Sep 24, 1929
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1669741
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Patent number 1,669,741
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Issue date May 15, 1928
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1669742
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Patent number 1,669,742
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Issue date May 15, 1928
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1608121
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Patent number 1,608,121
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Issue date Nov 23, 1926
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1540949
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Patent number 1,540,949
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Issue date Jun 9, 1925
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES