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Ballast plow
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Patent number 6,382,329
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Issue date May 7, 2002
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John G. Pitts
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Tie remover and inserter
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Patent number 4,951,573
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Issue date Aug 28, 1990
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Harsco Corporation
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Harry Madison
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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-
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Center plow for railroad ballast
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Patent number 4,266,351
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Issue date May 12, 1981
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Canron Corporation
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Emmett W. Cox
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Ballast side plow
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Patent number 4,266,352
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Issue date May 12, 1981
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Canron Corporation
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George R. Newman
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Device for plowing ballast
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Patent number 4,266,353
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Issue date May 12, 1981
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Canron Corporation
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George R. Newman
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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-
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Ballast regulator side plow
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Patent number 4,196,532
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Issue date Apr 8, 1980
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Materiel Industriel S.A.
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Jacques Muller
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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-
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Ballast leveling apparatus
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Patent number 4,010,691
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Issue date Mar 8, 1977
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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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3815268
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Patent number 3,815,268
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Issue date Jun 11, 1974
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3722423
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Patent number 3,722,423
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Issue date Mar 27, 1973
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3709116
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Patent number 3,709,116
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Issue date Jan 9, 1973
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3706145
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Patent number 3,706,145
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Issue date Dec 19, 1972
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3651587
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Patent number 3,651,587
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Issue date Mar 28, 1972
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3624936
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Patent number 3,624,936
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Issue date Dec 7, 1971
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3605297
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Patent number 3,605,297
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Issue date Sep 20, 1971
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3491467
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Patent number 3,491,467
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Issue date Jan 27, 1970
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3468042
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Patent number 3,468,042
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Issue date Sep 23, 1969
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3464499
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Patent number 3,464,499
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Issue date Sep 2, 1969
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3445944
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Patent number 3,445,944
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Issue date May 27, 1969
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3427990
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Patent number 3,427,990
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Issue date Feb 18, 1969
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES