with means for adjustably positioning the machine on the truck

Industry

  • CPC
  • E21C29/26
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Patents Grantslast 30 patents

  • Information Patent Grant

    Continuous mining machine

    • Patent number 4,363,519
    • Issue date Dec 14, 1982
    • Joy Manufacturing Company
    • Thomas E. Howard
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3879088

    • Patent number 3,879,088
    • Issue date Apr 22, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3873159

    • Patent number 3,873,159
    • Issue date Mar 25, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3317245

    • Patent number 3,317,245
    • Issue date May 2, 1967
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2800968

    • Patent number 2,800,968
    • Issue date Jul 30, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2800969

    • Patent number 2,800,969
    • Issue date Jul 30, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2340533

    • Patent number 2,340,533
    • Issue date Feb 1, 1944
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2282749

    • Patent number 2,282,749
    • Issue date May 12, 1942
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1786244

    • Patent number 1,786,244
    • Issue date Dec 23, 1930
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1664383

    • Patent number 1,664,383
    • Issue date Mar 27, 1928
    • E21 - EARTH DRILLING MINING