Jigsaw puzzle and technique

Details Jigsaw puzzle and technique Jigsaw puzzle and technique

1989-08-16

1991-06-11

Coven, Edward M.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

A63F 910

Patent

active

050226550

ABSTRACT:
A jigsaw puzzle includes outer straight edge pieces forming a rectangular puzzle perimeter; a number of interior straight edge pieces suggesting an interior rectangle and increasing the proportion of the number of straight edge pieces to the total number of pieces in the puzzle; and a number of joiner pieces, some of the joiner pieces crossing the bounary of the interior polygon, and others of the joiner pieces at positions remote from the boundary.

REFERENCES:
patent: D170113 (1953-08-01), Sibrik et al.
patent: 4561097 (1985-12-01), Siegel
patent: 4792138 (1988-12-01), Watkins
"Games", May 1986, p. 65.

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