Patents Assigned to Dr. F. Diehl & Co. Inh. Fritz Wiegand
  • Apparatus for marking surfaces or objects
    Patent number: 4750450
    Abstract: An apparatus for marking a contaminated area comprising a support tube having on one end thereof a device for supporting the tube upright and at a distance spaced from the device with a signal element.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: June 14, 1988
    Assignee: Dr. F. Diehl & Co. Inh. Fritz Wiegand
    Inventor: Fritz Wiegand