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Concrete railroad stringer or tie
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Patent number 5,170,937
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Issue date Dec 15, 1992
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Etablissements VAPE
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Gerard Vanotti
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Rail-tie fastening systems
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Patent number 5,165,599
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Issue date Nov 24, 1992
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Kerr-McGee Chemical Corporation
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S. Hudson Owen
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Rail-tie fastening systems
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Patent number 5,078,319
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Issue date Jan 7, 1992
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Kerr-McGee Chemical Corporation
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S. Hudson Owen
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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-
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Rail-tie fastening assembly
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Patent number 4,874,128
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Issue date Oct 17, 1989
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Kerr-McGee Chemical Corporation
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S. Hudson Owen
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1960331
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Patent number 1,960,331
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Issue date May 29, 1934
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1765265
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Patent number 1,765,265
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Issue date Jun 17, 1930
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1713454
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Patent number 1,713,454
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Issue date May 14, 1929
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1708765
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Patent number 1,708,765
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Issue date Apr 9, 1929
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1662402
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Patent number 1,662,402
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Issue date Mar 13, 1928
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1634200
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Patent number 1,634,200
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Issue date Jun 28, 1927
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1518387
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Patent number 1,518,387
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Issue date Dec 9, 1924
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1438577
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Patent number 1,438,577
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Issue date Dec 12, 1922
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1408058
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Patent number 1,408,058
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Issue date Feb 28, 1922
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1379661
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Patent number 1,379,661
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Issue date May 31, 1921
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1373592
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Patent number 1,373,592
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Issue date Apr 5, 1921
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1357941
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Patent number 1,357,941
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Issue date Nov 9, 1920
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1328917
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Patent number 1,328,917
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Issue date Jan 27, 1920
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1132962
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Patent number 1,132,962
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Issue date Mar 23, 1915
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1112670
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Patent number 1,112,670
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Issue date Oct 6, 1914
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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1076144
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Patent number 1,076,144
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Issue date Oct 21, 1913
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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853221
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Patent number 853,221
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Issue date May 14, 1907
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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773622
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Patent number 773,622
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Issue date Nov 1, 1904
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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633731
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Patent number 633,731
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Issue date Sep 26, 1899
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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390370
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Patent number 390,370
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Issue date Oct 2, 1888
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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375124
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Patent number 375,124
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Issue date Dec 20, 1887
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES