Patents Examined by William H. Grib
  • Patent number: 3997980
    Abstract: A geographically configured globe is provided with a transparent overlay globe geometer segment shaped to closely overlay the globe surface and is adapted to be removably and pivotally secured to the globe at a pivot point of the overlay. A transparent circular longitude degree amd time disk is pivotally secured to the overlay assembly at the pivot point thereof and the overlay assembly may be generally pie-shaped with the pivot point end enlarged to a circular configuration about the pivot point.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: December 21, 1976
    Assignee: National Geographic Society
    Inventor: Richard K. Rogers