TREA

Coupling and uncoupling machine to cable or chain

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Industry

  • CPC
  • E21C29/18
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C29/00Propulsion of machines for slitting or completely freeing the mineral from the seam

Current Industry

E21C29/18Coupling and uncoupling machine to cable or chain
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Plow baseplate
    • Patent number 7,347,501
    • Issue date Mar 25, 2008
    • DBT GmbH
    • Diedrich Bettermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Coupling devices for connecting a mineral mining machine to a drive...
    • Patent number 4,332,421
    • Issue date Jun 1, 1982
    • Gewerkschaft Eisenhutte Westfalia
    • Gerhard Merten
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Holding device for a chain
    • Patent number 4,159,849
    • Issue date Jul 3, 1979
    • Fa. August Thiele
    • Friedhelm Rehbein
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for drawing the shearers
    • Patent number 4,099,786
    • Issue date Jul 11, 1978
    • Taiheiyo Engineering Incorporated
    • Shigeo Nakajima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3768866
    • Patent number 3,768,866
    • Issue date Oct 30, 1973
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    PLOW BASEPLATE
    • Publication number 20080012418
    • Publication date Jan 17, 2008
    • Diedrich Bettermann
    • E21 - EARTH DRILLING MINING