TREA

Hans G. Follert

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  • Dortmund, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cutting appliances for use in tunnel driving operations
    • Patent number 4,556,256
    • Issue date Dec 3, 1985
    • Gewerkschaft Eisenhutte Westfalia
    • Hans G. Follert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Tunnel drive shield
    • Patent number 4,122,683
    • Issue date Oct 31, 1978
    • Gewerkschaft Eisenhutte Westfalia
    • Hans G. Follert
    • E21 - EARTH DRILLING MINING