TREA

Ronald M. K. McKechnie

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  • Vaal Reefs, ZA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shaft guide alignment measurement
    • Patent number 4,627,170
    • Issue date Dec 9, 1986
    • Vaal Reefs Exploration and Mining Co.
    • Ronald M. K. McKechnie
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Guide roller for skip or cage
    • Patent number 4,434,876
    • Issue date Mar 6, 1984
    • Vaal Reefs Exploration and Mining Company Limited
    • Ronald M. K. McKechnie
    • B66 - HOISTING LIFTING HAULING