TREA

Interlocking devices having mechanical or fluid-pressure operation

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Industry

  • CPC
  • B61L19/02
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L19/00Arrangements for interlocking between points and signals by means of a single interlocking device

Current Industry

B61L19/02Interlocking devices having mechanical or fluid-pressure operation
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    1956751
    • Patent number 1,956,751
    • Issue date May 1, 1934
    • B61 - RAILWAYS
  • Information Patent Grant

    1535923
    • Patent number 1,535,923
    • Issue date Apr 28, 1925
    • B61 - RAILWAYS
  • Information Patent Grant

    1392630
    • Patent number 1,392,630
    • Issue date Oct 4, 1921
    • B61 - RAILWAYS
  • Information Patent Grant

    1295560
    • Patent number 1,295,560
    • Issue date Feb 25, 1919
    • B61 - RAILWAYS
  • Information Patent Grant

    1272314
    • Patent number 1,272,314
    • Issue date Jul 9, 1918
    • B61 - RAILWAYS
  • Information Patent Grant

    1263193
    • Patent number 1,263,193
    • Issue date Apr 16, 1918
    • B61 - RAILWAYS
  • Information Patent Grant

    1052534
    • Patent number 1,052,534
    • Issue date Feb 11, 1913
    • B61 - RAILWAYS
  • Information Patent Grant

    974864
    • Patent number 974,864
    • Issue date Nov 8, 1910
    • B61 - RAILWAYS
  • Information Patent Grant

    925123
    • Patent number 925,123
    • Issue date Jun 15, 1909
    • B61 - RAILWAYS
  • Information Patent Grant

    902297
    • Patent number 902,297
    • Issue date Oct 27, 1908
    • B61 - RAILWAYS
  • Information Patent Grant

    863148
    • Patent number 863,148
    • Issue date Aug 13, 1907
    • B61 - RAILWAYS
  • Information Patent Grant

    832192
    • Patent number 832,192
    • Issue date Oct 2, 1906
    • B61 - RAILWAYS
  • Information Patent Grant

    818660
    • Patent number 818,660
    • Issue date Apr 24, 1906
    • B61 - RAILWAYS
  • Information Patent Grant

    811277
    • Patent number 811,277
    • Issue date Jan 30, 1906
    • B61 - RAILWAYS
  • Information Patent Grant

    746661
    • Patent number 746,661
    • Issue date Dec 15, 1903
    • B61 - RAILWAYS
  • Information Patent Grant

    740127
    • Patent number 740,127
    • Issue date Sep 29, 1903
    • B61 - RAILWAYS
  • Information Patent Grant

    707180
    • Patent number 707,180
    • Issue date Aug 19, 1902
    • B61 - RAILWAYS
  • Information Patent Grant

    664345
    • Patent number 664,345
    • Issue date Dec 18, 1900
    • B61 - RAILWAYS
  • Information Patent Grant

    643498
    • Patent number 643,498
    • Issue date Feb 13, 1900
    • B61 - RAILWAYS
  • Information Patent Grant

    638210
    • Patent number 638,210
    • Issue date Dec 5, 1899
    • B61 - RAILWAYS
  • Information Patent Grant

    634273
    • Patent number 634,273
    • Issue date Oct 3, 1899
    • B61 - RAILWAYS
  • Information Patent Grant

    631814
    • Patent number 631,814
    • Issue date Aug 29, 1899
    • B61 - RAILWAYS
  • Information Patent Grant

    617507
    • Patent number 617,507
    • Issue date Jan 10, 1899
    • B61 - RAILWAYS
  • Information Patent Grant

    607800
    • Patent number 607,800
    • Issue date Jul 19, 1898
    • B61 - RAILWAYS
  • Information Patent Grant

    592661
    • Patent number 592,661
    • Issue date Oct 26, 1897
    • B61 - RAILWAYS
  • Information Patent Grant

    589606
    • Patent number 589,606
    • Issue date Sep 7, 1897
    • B61 - RAILWAYS
  • Information Patent Grant

    587145
    • Patent number 587,145
    • Issue date Jul 27, 1897
    • B61 - RAILWAYS
  • Information Patent Grant

    586587
    • Patent number 586,587
    • Issue date Jul 20, 1897
    • B61 - RAILWAYS
  • Information Patent Grant

    578293
    • Patent number 578,293
    • Issue date Mar 2, 1897
    • B61 - RAILWAYS
  • Information Patent Grant

    574431
    • Patent number 574,431
    • Issue date Jan 5, 1897
    • B61 - RAILWAYS

Patents Applicationslast 30 patents