TREA

Willy Lanfermann

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Patents Grantslast 30 patents

  • Information Patent Grant

    Drum cutter
    • Patent number 4,085,974
    • Issue date Apr 25, 1978
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Willy Lanfermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rack device for a mining machine
    • Patent number 4,082,361
    • Issue date Apr 4, 1978
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Willy Lanfermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rack-driven mining machine with pivotal guide shoe
    • Patent number 4,067,620
    • Issue date Jan 10, 1978
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Willy Lanfermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Spill-plate apparatus for a mining machine
    • Patent number 4,025,118
    • Issue date May 24, 1977
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Willy Lanfermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Chain drive arrangement for a mining machine
    • Patent number 3,968,754
    • Issue date Jul 13, 1976
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Willy Lanfermann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drum coal cutting machine having a roller crusher
    • Patent number 3,945,680
    • Issue date Mar 23, 1976
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei m.b.H.
    • Friedhelm Henrich
    • E21 - EARTH DRILLING MINING