TREA

H L & H Timer Products (Proprietary) Limited

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  • Transvaal, ZA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mine prop
    • Patent number 4,915,339
    • Issue date Apr 10, 1990
    • H L & H Timer Products (Proprietary) Limited
    • Hagen Halbich
    • E21 - EARTH DRILLING MINING