Auxiliary rail beside gap

Industry

  • CPC
  • E01B11/34
This industry / category may be too specific. Please go to a parent level for more data

Patents Grantslast 30 patents

  • Information Patent Grant

    Rail temperature expansion joint and laying and mounting method

    • Patent number 12,110,639
    • Issue date Oct 8, 2024
    • China Railway First Group Co., LTD
    • Huihuo Wu
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1847341

    • Patent number 1,847,341
    • Issue date Mar 1, 1932
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1665906

    • Patent number 1,665,906
    • Issue date Apr 10, 1928
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    1545089

    • Patent number 1,545,089
    • Issue date Jul 7, 1925
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES