TREA

Archelaius D. Allen

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  • Preston, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Control systems
    • Patent number 4,692,067
    • Issue date Sep 8, 1987
    • Dobson Park Industries PLC.
    • Richard Ward
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support and attachment means therefor
    • Patent number 4,605,341
    • Issue date Aug 12, 1986
    • Dobson Park Industries PLC.
    • Archelaius D. Allen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Underground support devices
    • Patent number 4,490,076
    • Issue date Dec 25, 1984
    • Dobson Park Industries PLC.
    • Archelaius D. Allen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Self-advancing mine roof supports
    • Patent number 4,159,671
    • Issue date Jul 3, 1979
    • Archelaius D. Allen
    • E21 - EARTH DRILLING MINING