Patents Assigned to Geratebau Albin Grunzig & Co.
  • Gymnastics and game apparatus
    Patent number: 4199138
    Abstract: A gymnastics and game apparatus formed of a plurality of large-scale structural members made of a plastic material in a box-shaped elongate configuration having patterns of recesses in the form of mortise openings and grooves in at least two opposite longitudinal lateral walls, and plug connectors for interconnecting structural members or attaching various elements such as bars, rods or the like to the structural members, the plug connectors having a configuration mating the mortises and grooves on the structural members.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: April 22, 1980
    Assignee: Geratebau Albin Grunzig & Co.
    Inventor: Benno Kaiser