TREA

using timber- setting machines

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Industry

  • CPC
  • E21D11/03
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D11/00Lining tunnels, galleries or other underground cavities

Current Industry

E21D11/03using timber- setting machines
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3712071
    • Patent number 3,712,071
    • Issue date Jan 23, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3204933
    • Patent number 3,204,933
    • Issue date Sep 7, 1965
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2917282
    • Patent number 2,917,282
    • Issue date Dec 15, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2784941
    • Patent number 2,784,941
    • Issue date Mar 12, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2772871
    • Patent number 2,772,871
    • Issue date Dec 4, 1956
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2738081
    • Patent number 2,738,081
    • Issue date Mar 13, 1956
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2727639
    • Patent number 2,727,639
    • Issue date Dec 20, 1955
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2700483
    • Patent number 2,700,483
    • Issue date Jan 25, 1955
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    2694460
    • Patent number 2,694,460
    • Issue date Nov 16, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2689662
    • Patent number 2,689,662
    • Issue date Sep 21, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2683475
    • Patent number 2,683,475
    • Issue date Jul 13, 1954
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    2672997
    • Patent number 2,672,997
    • Issue date Mar 23, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2667903
    • Patent number 2,667,903
    • Issue date Feb 2, 1954
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    2656057
    • Patent number 2,656,057
    • Issue date Oct 20, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2649979
    • Patent number 2,649,979
    • Issue date Aug 25, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2648444
    • Patent number 2,648,444
    • Issue date Aug 11, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2603373
    • Patent number 2,603,373
    • Issue date Jul 15, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2597086
    • Patent number 2,597,086
    • Issue date May 20, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2591475
    • Patent number 2,591,475
    • Issue date Apr 1, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2574857
    • Patent number 2,574,857
    • Issue date Nov 13, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2570383
    • Patent number 2,570,383
    • Issue date Oct 9, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2459505
    • Patent number 2,459,505
    • Issue date Jan 18, 1949
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    2456878
    • Patent number 2,456,878
    • Issue date Dec 21, 1948
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2408387
    • Patent number 2,408,387
    • Issue date Oct 1, 1946
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1886620
    • Patent number 1,886,620
    • Issue date Nov 8, 1932
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1755738
    • Patent number 1,755,738
    • Issue date Apr 22, 1930
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1708761
    • Patent number 1,708,761
    • Issue date Apr 9, 1929
    • E21 - EARTH DRILLING MINING