TREA

George Joel

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  • Sheffield, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mineral mining pick and holder assembly
    • Patent number 4,583,786
    • Issue date Apr 22, 1986
    • Padley & Venables Limited
    • John D. Thorpe
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mineral mining apparatus
    • Patent number 4,529,250
    • Issue date Jul 16, 1985
    • Padley & Venables Limited
    • Leonard Radford
    • E21 - EARTH DRILLING MINING