Switches Crossings

Industry

  • CPC
  • E01B25/20
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Current Industry

Patents Grantslast 30 patents

  • Information Patent Grant

    Flared railway frog

    • Patent number 7,261,259
    • Issue date Aug 28, 2007
    • Michael R. Little
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    TRACK-CHANGING DEVICE FOR A PNEUMATIC TRANSPORT VEHICLE

    • Publication number 20220119018
    • Publication date Apr 21, 2022
    • AEROM REPRESENTAÇÕES E PARTICIPAÇÕES LTDA.
    • Diego DA CRUZ
    • B61 - RAILWAYS
  • Information Patent Application

    Flared railway frog

    • Publication number 20060081734
    • Publication date Apr 20, 2006
    • Michael R. Little
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES