TREA

Particular fluids not covered by any chemical subdivision

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Industry

  • CPC
  • E21D15/515
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D15/00Props Chocks

Current Industry

E21D15/515Particular fluids not covered by any chemical subdivision
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Water-based industrial fluids
    • Patent number 4,257,902
    • Issue date Mar 24, 1981
    • Singer & Hersch Industrial Development (Pty.) Ltd.
    • Haimi N. Singer
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1919156
    • Patent number 1,919,156
    • Issue date Jul 18, 1933
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    TELESCOPIC MINE ROOF SUPPORT
    • Publication number 20150184512
    • Publication date Jul 2, 2015
    • BURRELL MINING PRODUCTS, INC.
    • Michael T. Shook
    • E21 - EARTH DRILLING MINING