Patents Assigned to Dutch Pipe Ltd.
  • Pocket scale
    Patent number: D478826
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: August 26, 2003
    Assignee: Dutch Pipe Ltd.
    Inventor: Gregory P. Barmes
  • Ground safe
    Patent number: D485040
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: January 6, 2004
    Assignee: Dutch Pipe, Ltd.
    Inventor: Marvin L. Barmes, Sr.