TREA

Erwin Langer

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  • Ratingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas-tight pipe connection
    • Patent number 5,275,445
    • Issue date Jan 4, 1994
    • Mannesmann Aktiengesellschaft
    • Rainer Krings
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...