of other than up-draught type

Patents Grantslast 30 patents

  • Information Patent Grant

    Furnace for the heat treatment of lumpy to fine grained material

    • Patent number 4,252,521
    • Issue date Feb 24, 1981
    • Klockner-Humboldt Deutz AG
    • Heinrich Buchner
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    2948521

    • Patent number 2,948,521
    • Issue date Aug 9, 1960
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    2890951

    • Patent number 2,890,951
    • Issue date Jun 16, 1959
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents