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Willi Holzer

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  • Konigsberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Corrugated pipe with foot
    • Patent number 6,164,338
    • Issue date Dec 26, 2000
    • Frankische Rohrwerke Gebr. Kirchner GmbH & Co.
    • Willi Holzer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...