using rectified alternating current

Patents Grantslast 30 patents

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    Train detection system for a railway track section, associated rail...

    • Patent number 10,614,708
    • Issue date Apr 7, 2020
    • ALSTOM TRANSPORT TECHNOLOGIES
    • Jared Cooper
    • G08 - SIGNALLING
  • Information Patent Grant

    2318542

    • Patent number 2,318,542
    • Issue date May 4, 1943
    • B61 - RAILWAYS
  • Information Patent Grant

    1730135

    • Patent number 1,730,135
    • Issue date Oct 1, 1929
    • B61 - RAILWAYS
  • Information Patent Grant

    1704736

    • Patent number 1,704,736
    • Issue date Mar 12, 1929
    • B61 - RAILWAYS
  • Information Patent Grant

    1653625

    • Patent number 1,653,625
    • Issue date Dec 27, 1927
    • B61 - RAILWAYS
  • Information Patent Grant

    1645529

    • Patent number 1,645,529
    • Issue date Oct 18, 1927
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents