TREA

Common line wire control using relay distributors

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Industry

  • CPC
  • B61L7/086
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L7/00Remote control of local operating means for points, signals, or trackmounted scotch-blocks

Current Industry

B61L7/086Common line wire control using relay distributors
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2179311
    • Patent number 2,179,311
    • Issue date Nov 7, 1939
    • B61 - RAILWAYS
  • Information Patent Grant

    2176611
    • Patent number 2,176,611
    • Issue date Oct 17, 1939
    • B61 - RAILWAYS
  • Information Patent Grant

    2176600
    • Patent number 2,176,600
    • Issue date Oct 17, 1939
    • B61 - RAILWAYS
  • Information Patent Grant

    2168786
    • Patent number 2,168,786
    • Issue date Aug 8, 1939
    • B61 - RAILWAYS
  • Information Patent Grant

    2082162
    • Patent number 2,082,162
    • Issue date Jun 1, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2082152
    • Patent number 2,082,152
    • Issue date Jun 1, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2082740
    • Patent number 2,082,740
    • Issue date Jun 1, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2073748
    • Patent number 2,073,748
    • Issue date Mar 16, 1937
    • B61 - RAILWAYS
  • Information Patent Grant

    2042670
    • Patent number 2,042,670
    • Issue date Jun 2, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    2042669
    • Patent number 2,042,669
    • Issue date Jun 2, 1936
    • B61 - RAILWAYS
  • Information Patent Grant

    1997543
    • Patent number 1,997,543
    • Issue date Apr 9, 1935
    • B61 - RAILWAYS
  • Information Patent Grant

    1852568
    • Patent number 1,852,568
    • Issue date Apr 5, 1932
    • B61 - RAILWAYS