Abstract: A spherical body has three peripheral guide grooves, extending along orthogonally intersecting great circles, which are designed to retain respective sets of sliding elements with distinctive colors or other markings to be rearranged in certain patterns. The grooves are undercut and the sliding elements are removable therefrom as well as reinsertable into same upon separation of adjoining body segments which are snap-fitted together along the grooves.
Type:
Grant
Filed:
January 19, 1983
Date of Patent:
November 27, 1984
Assignee:
Imag-Verlags Ag Fur Immaterialguterrecht