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Derail alarm systems
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Patent number 9,981,676
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Issue date May 29, 2018
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Edward Stanton Sandstrom
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Tamping machine
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Patent number 6,453,822
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Issue date Sep 24, 2002
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Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
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Josef Theurer
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Railroad track gager/leveler/linear measurer
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Patent number 5,094,004
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Issue date Mar 10, 1992
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The United States of America as represented by the Secretary of the Army
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Cecil T. Wooten
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Railroad track gage
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Patent number 4,654,973
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Issue date Apr 7, 1987
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James T. Worthy
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Rail gauger
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Patent number 4,534,296
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Issue date Aug 13, 1985
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Southern Railway Company
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John L. Stubbs
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3381383
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Patent number 3,381,383
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Issue date May 7, 1968
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3334592
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Patent number 3,334,592
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Issue date Aug 8, 1967
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3151570
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Patent number 3,151,570
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Issue date Oct 6, 1964
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2921538
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Patent number 2,921,538
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Issue date Jan 19, 1960
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2829438
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Patent number 2,829,438
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Issue date Apr 8, 1958
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2672694
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Patent number 2,672,694
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Issue date Mar 23, 1954
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2507896
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Patent number 2,507,896
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Issue date May 16, 1950
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2286456
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Patent number 2,286,456
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Issue date Jun 16, 1942
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2246430
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Patent number 2,246,430
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Issue date Jun 17, 1941
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2098938
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Patent number 2,098,938
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Issue date Nov 16, 1937
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2042614
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Patent number 2,042,614
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Issue date Jun 2, 1936
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1681091
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Patent number 1,681,091
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Issue date Aug 14, 1928
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1633535
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Patent number 1,633,535
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Issue date Jun 21, 1927
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES