Element of construction in the form of a box, the manufacture of plastic material, for a building game pedagogic

摘要

1537056 Constructional toys JOSEF LEISMANN OHG 27 Nov 1975 [5 Dec 1974] 48738/75 Heading A6S A constructional toy includes a number of building blocks (Fig. 1) having a square socket and a square spigot 6, a number of 'double' building blocks (Fig. 2) having two of the square sockets and spigots, the blocks being provided with bores in the side walls parallel to the spigot-bearing face, and a number of connecting bolts and wheel spindles to be received in the bores.