TREA

Heinz Kunzer

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  • Herne, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mining and conveying apparatus
    • Patent number 4,883,322
    • Issue date Nov 28, 1989
    • Bochumer Eisenhutte Heintzmann GmbH & Co. KG
    • Gunter Blumenthal
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of and arrangement for loosening, loading and transporting o...
    • Patent number 4,620,748
    • Issue date Nov 4, 1986
    • Bochumer Eisenhutte Heintzmann GmbH & Co. KG
    • Peter Heintzmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Chain bucket conveyor
    • Patent number 4,437,562
    • Issue date Mar 20, 1984
    • Bochumer Eisenhutte GmbH & Co. KG
    • Manfred Koppers
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Walking mine support
    • Patent number 4,183,700
    • Issue date Jan 15, 1980
    • Bochumer Eisenhutte Heintzmann GmbH
    • Gerhard von Klinggraff
    • E21 - EARTH DRILLING MINING