TREA

with equipment for cleaning the slit

Follow

Industry

  • CPC
  • E21C25/14
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C25/00Cutting machines

Current Industry

E21C25/14with equipment for cleaning the slit
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Cutting drum web deflector
    • Patent number 6,890,037
    • Issue date May 10, 2005
    • Joy M M Delaware, Inc
    • Christopher G Stewart
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of indirect measurement of cowl position on a longwall shearer
    • Patent number 5,013,091
    • Issue date May 7, 1991
    • Consolidation Coal Company
    • Stephen L. Bessinger
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for use with cutting drums of mineral machines
    • Patent number 4,389,073
    • Issue date Jun 21, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Thomas Trumper
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cowl assembly for longwall mining machine
    • Patent number 4,346,939
    • Issue date Aug 31, 1982
    • Gerb. Eickhoff Machinenfabrik und Eisengiesserei m.b.H.
    • Rolf Krause
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for pivotally positioning a clearing shield for a drum-cu...
    • Patent number 4,251,112
    • Issue date Feb 17, 1981
    • Geb. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
    • Rolf Krause
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Equipment for laying elongate material
    • Patent number 4,196,935
    • Issue date Apr 8, 1980
    • Coal Industry (Patents) Limited
    • Eric Dring
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Adjustable gage cutter scraper for tunneling machines
    • Patent number 3,989,115
    • Issue date Nov 2, 1976
    • Dresser Industries, Inc.
    • Albert Robin Ambrose
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3897110
    • Patent number 3,897,110
    • Issue date Jul 29, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3711160
    • Patent number 3,711,160
    • Issue date Jan 16, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3582139
    • Patent number 3,582,139
    • Issue date Jun 1, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3578811
    • Patent number 3,578,811
    • Issue date May 18, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3482879
    • Patent number 3,482,879
    • Issue date Dec 9, 1969
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3445139
    • Patent number 3,445,139
    • Issue date May 20, 1969
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3291533
    • Patent number 3,291,533
    • Issue date Dec 13, 1966
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3156348
    • Patent number 3,156,348
    • Issue date Nov 10, 1964
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2962271
    • Patent number 2,962,271
    • Issue date Nov 29, 1960
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1488766
    • Patent number 1,488,766
    • Issue date Apr 1, 1924
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Cutting drum web deflector
    • Publication number 20040164603
    • Publication date Aug 26, 2004
    • Joy MM Delaware, Inc.
    • Christopher G. Stewart
    • E21 - EARTH DRILLING MINING