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Method for maintaining wood railroad ties
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Patent number 11,479,920
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Issue date Oct 25, 2022
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Railroad Solutions, Inc.
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Walter Vizcaino
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Concrete rail tie
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Patent number 6,604,690
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Issue date Aug 12, 2003
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Engineering Invention Pty Ltd.
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Hartley Frank Young
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3762640
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Patent number 3,762,640
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Issue date Oct 2, 1973
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3337132
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Patent number 3,337,132
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Issue date Aug 22, 1967
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3243121
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Patent number 3,243,121
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Issue date Mar 29, 1966
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3240429
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Patent number 3,240,429
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Issue date Mar 15, 1966
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3210006
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Patent number 3,210,006
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Issue date Oct 5, 1965
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3044708
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Patent number 3,044,708
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Issue date Jul 17, 1962
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3019988
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Patent number 3,019,988
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Issue date Feb 6, 1962
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2750119
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Patent number 2,750,119
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Issue date Jun 12, 1956
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2621858
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Patent number 2,621,858
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Issue date Dec 16, 1952
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2609991
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Patent number 2,609,991
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Issue date Sep 9, 1952
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2538249
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Patent number 2,538,249
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Issue date Jan 16, 1951
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2501969
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Patent number 2,501,969
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Issue date Mar 28, 1950
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2490242
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Patent number 2,490,242
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Issue date Dec 6, 1949
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2480975
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Patent number 2,480,975
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Issue date Sep 6, 1949
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2451127
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Patent number 2,451,127
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Issue date Oct 12, 1948
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2435352
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Patent number 2,435,352
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Issue date Feb 3, 1948
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2410260
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Patent number 2,410,260
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Issue date Oct 29, 1946
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2408628
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Patent number 2,408,628
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Issue date Oct 1, 1946
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2324452
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Patent number 2,324,452
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Issue date Jul 13, 1943
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2299354
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Patent number 2,299,354
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Issue date Oct 20, 1942
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2294987
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Patent number 2,294,987
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Issue date Sep 8, 1942
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2257020
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Patent number 2,257,020
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Issue date Sep 23, 1941
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2252116
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Patent number 2,252,116
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Issue date Aug 12, 1941
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2250785
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Patent number 2,250,785
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Issue date Jul 29, 1941
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES