TREA

Use of rectified alternating current

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Industry

  • CPC
  • B61L1/186
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B61Railways B61LGUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC B61L1/00Devices along the route controlled by interaction with the vehicle or vehicle train

Current Industry

B61L1/186Use of rectified alternating current
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3046390
    • Patent number 3,046,390
    • Issue date Jul 24, 1962
    • B61 - RAILWAYS
  • Information Patent Grant

    2903574
    • Patent number 2,903,574
    • Issue date Sep 8, 1959
    • B61 - RAILWAYS
  • Information Patent Grant

    2293139
    • Patent number 2,293,139
    • Issue date Aug 18, 1942
    • B61 - RAILWAYS
  • Information Patent Grant

    2272550
    • Patent number 2,272,550
    • Issue date Feb 10, 1942
    • B61 - RAILWAYS
  • Information Patent Grant

    2123966
    • Patent number 2,123,966
    • Issue date Jul 19, 1938
    • B61 - RAILWAYS
  • Information Patent Grant

    2123964
    • Patent number 2,123,964
    • Issue date Jul 19, 1938
    • B61 - RAILWAYS
  • Information Patent Grant

    1995652
    • Patent number 1,995,652
    • Issue date Mar 26, 1935
    • B61 - RAILWAYS
  • Information Patent Grant

    1824119
    • Patent number 1,824,119
    • Issue date Sep 22, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1804663
    • Patent number 1,804,663
    • Issue date May 12, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1804664
    • Patent number 1,804,664
    • Issue date May 12, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1756589
    • Patent number 1,756,589
    • Issue date Apr 29, 1930
    • B61 - RAILWAYS

Patents Applicationslast 30 patents