with two or more fixed muffles

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and tunnel furnace for sintering blanks

    • Patent number 4,795,341
    • Issue date Jan 3, 1989
    • Kraftwerk Union Aktiengesellschaft
    • Helmut Assmann
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Method and tunnel furnace for sintering blanks

    • Patent number 4,655,978
    • Issue date Apr 7, 1987
    • Kraftwerk Union Aktiengesellschaft
    • Helmut Assmann
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    2817507

    • Patent number 2,817,507
    • Issue date Dec 24, 1957
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    1829290

    • Patent number 1,829,290
    • Issue date Oct 27, 1931
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    1613054

    • Patent number 1,613,054
    • Issue date Jan 4, 1927
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    1451815

    • Patent number 1,451,815
    • Issue date Apr 17, 1923
    • F27 - FURNACES KILNS OVENS RETORTS