Patents Assigned to Gaastra B.V.
  • Grumment for sail cloth
    Patent number: 3935619
    Abstract: A grumment for sail cloth in which two rings are positioned around the edge of a hole therein which edge has been ravelled and has a thermosetting adhesive smeared thereon and tightly clamped against the edge by a torus-shaped collar enclosing the rings.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: February 3, 1976
    Assignee: Gaastra B.V.
    Inventor: Douwe Gaastra