Patents Assigned to Trisa Holding
  • Toothbrush
    Patent number: D418982
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: January 18, 2000
    Assignee: Trisa Holding, AG
    Inventor: Walter Vonarburg
  • Toothbrush
    Patent number: D427437
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: July 4, 2000
    Assignee: Trisa Holding AG
    Inventor: Walter Vonarburg