Patents Assigned to Hausler Scientific Instruments (Proprietary) Limited
  • Map reading device
    Patent number: 4233741
    Abstract: The device has a semi-circular housing 10 defined by a linear wall 14 and an arcuate wall 12, with an inturned edge 13, 15 on one side of the housing. Beta light strips 18 are located in the recess beneath the edges 13, 15 so that graduations on the internal walls of the housing can be viewed at night through an opening 16 in the housing.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: November 18, 1980
    Assignee: Hausler Scientific Instruments (Proprietary) Limited
    Inventor: Claude O. Bisset