TREA

Scheepswerf en Machinefabriek "De Liesbosch" B.V.

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Organization

  • Nieuwegein, NL
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of dredging and dredging implement
    • Patent number 4,418,484
    • Issue date Dec 6, 1983
    • Ballast-Nedam Groep N.V.
    • Tjako A. Wolters
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Suction dredger and method of loading the same
    • Patent number 4,245,932
    • Issue date Jan 20, 1981
    • Ingenieursbureau voor Systemen en Octrooien "Spanstaal" B. V.
    • Gerrit H. van Zeggelaar
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Method and apparatus for dredging
    • Patent number 4,177,585
    • Issue date Dec 11, 1979
    • Ballast-Nedam Groep N.V., Amsterdamse Ballast Bagger en Grond (Amsterdam Ball...
    • Jan de Koning
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Suction dredger vessel and method of loading the hold of the same
    • Patent number 4,172,617
    • Issue date Oct 30, 1979
    • Ingenieursbureau voor Systemem en Octrooien "Spanstaal" B.V.
    • Jan de Koning
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING