| 20120280450 | SELF-STABILIZING JIGSAW PUZZLE - The disclosure relates to a jigsaw puzzle having at least two puzzle parts wherein each of the mutually facing circumferential edge sections on both sides of the connecting region and remote from the latter is provided with at least one circumferential edge piece, along which the course of the circumferential edge is defined by the bisector of a two-dimensional angle which is formed between two straight lines which intersect on the bisector and by an upper end point of the associated one of the mutually facing circumferential edge sections of the two puzzle parts to an upper end point of an opposite circumferential edge of the same puzzle part such that when puzzle parts are joined together along mutually facing circumferential edge sections, contact between the two puzzle parts occurs exclusively on said circumferential edge pieces and in the region of the undercut. | 11-08-2012 |
