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Willem Jan van Heijst

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  • Monte-Carlo, MC
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Patents Grantslast 30 patents

  • Information Patent Grant

    Intermediate conduit between two pivotally connected conduits
    • Patent number 4,137,948
    • Issue date Feb 6, 1979
    • Single Buoy Moorings Inc.
    • Willem J. Van Heijst
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Conduit with cardan joint
    • Patent number 4,097,072
    • Issue date Jun 27, 1978
    • N.V. Industrieele Handelscombinatie Holland
    • Willem Jan van Heijst
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...