TREA

Amsterdamse Ballast Bagger

Follow

Organization

  • Nieuwegein, NL
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Transport conduit
    • Patent number 4,250,034
    • Issue date Feb 10, 1981
    • Ballast-Nedam Groep N.V.
    • Tjako A. Wolters
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Suction dredge with swell compensating ladder mount
    • Patent number 4,084,334
    • Issue date Apr 18, 1978
    • Ballast Nedam Groep N.V.
    • Tjako Aaldrik Wolters
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING