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Friedrich Ernst

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  • Dortmund, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Latching mechanism on coke oven doors
    • Patent number 4,429,908
    • Issue date Feb 7, 1984
    • Dr. C. Otto & Comp. G.m.b.H.
    • Friedrich Ernst
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...