TREA

SINGER & HERSCH INDUSTRIAL DEVELOPMENT (PROPRIETARY) LIMITED

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  • JOHANNESBURG, ZA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lubricant
    • Patent number 4,995,994
    • Issue date Feb 26, 1991
    • Singer & Hersch Industrial Development
    • Haimi N. Singer
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Water-based industrial fluids
    • Patent number RE33124
    • Issue date Dec 5, 1989
    • Singer and Hersch Industrial Development (PTY) Ltd.
    • Haimi N. Singer
    • 252 - Compositions
  • 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

Patents Applicationslast 30 patents

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