TREA

by percussed planing means

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Industry

  • CPC
  • E21C27/46
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C27/00Machines which completely free the mineral from the seam

Current Industry

E21C27/46by percussed planing means
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method for directionally swaying and resetting harrow teeth of roll...
    • Patent number 10,180,066
    • Issue date Jan 15, 2019
    • Suhua Liu
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Resonant tool driving system with gap
    • Patent number 4,343,514
    • Issue date Aug 10, 1982
    • The Gurries Company
    • Raymond A. Gurries
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Tool driving apparatus and method
    • Patent number 4,229,046
    • Issue date Oct 21, 1980
    • The Gurries Company
    • Raymond A. Gurries
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Mining method and mining machine for cutting away hard mineral mate...
    • Patent number 4,181,363
    • Issue date Jan 1, 1980
    • Gutehoffnungshutte Sterkrade A.G.
    • Heinrich Goris
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3876251
    • Patent number 3,876,251
    • Issue date Apr 8, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3544075
    • Patent number 3,544,075
    • Issue date Dec 1, 1970
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    3419313
    • Patent number 3,419,313
    • Issue date Dec 31, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3367716
    • Patent number 3,367,716
    • Issue date Feb 6, 1968
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    3151912
    • Patent number 3,151,912
    • Issue date Oct 6, 1964
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3113762
    • Patent number 3,113,762
    • Issue date Dec 10, 1963
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3071355
    • Patent number 3,071,355
    • Issue date Jan 1, 1963
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3030087
    • Patent number 3,030,087
    • Issue date Apr 17, 1962
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2955809
    • Patent number 2,955,809
    • Issue date Oct 11, 1960
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2873959
    • Patent number 2,873,959
    • Issue date Feb 17, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2791411
    • Patent number 2,791,411
    • Issue date May 7, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2690903
    • Patent number 2,690,903
    • Issue date Oct 5, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2689721
    • Patent number 2,689,721
    • Issue date Sep 21, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2670943
    • Patent number 2,670,943
    • Issue date Mar 2, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2610841
    • Patent number 2,610,841
    • Issue date Sep 16, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1617941
    • Patent number 1,617,941
    • Issue date Feb 15, 1927
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1563153
    • Patent number 1,563,153
    • Issue date Nov 24, 1925
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents