in vertical direction

Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for the low temperature carbonization of fine-grain fuels

    • Patent number 3,994,700
    • Issue date Nov 30, 1976
    • Dr. C. Otto & Comp. G.m.b.H.
    • Wolfgang Grams
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    2223897

    • Patent number 2,223,897
    • Issue date Dec 3, 1940
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    1749641

    • Patent number 1,749,641
    • Issue date Mar 4, 1930
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents