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Waldemar H. R. Gritzka

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  • 463 Bochum-Linden, DT
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  • Information Patent Grant

    Elastic roll ring
    • Patent number 3,951,420
    • Issue date Apr 20, 1976
    • Waldemar H. R. Gritzka
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...