Patents Assigned to Tubex AB
  • Patent number: D270100
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: August 9, 1983
    Assignee: Tubex AB
    Inventor: Per H. Hjalmarsson
  • Patent number: D296664
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: July 12, 1988
    Assignee: Tubex AB
    Inventor: Per H. Hjalmarsson
  • Patent number: D349048
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: July 26, 1994
    Assignee: Tubex AB
    Inventor: Per Harry Hjalmarsson