Joints made by flame welding

Industry

  • CPC
  • E01B11/48
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mobile apparatus for laying railway track

    • Patent number 4,232,610
    • Issue date Nov 11, 1980
    • Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H
    • Josef Theurer
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3802348

    • Patent number 3,802,348
    • Issue date Apr 9, 1974
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    3726232

    • Patent number 3,726,232
    • Issue date Apr 10, 1973
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES