US PATENT SUBCLASS 273 / 155
.~ Folding and relatively movable strips and disks

Current as of: June, 1999
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273 /   HD   AMUSEMENT DEVICES: GAMES

153 R  DF  PUZZLES {6}
155.~ Folding and relatively movable strips and disks

DEFINITION

Classification: 273/155

(under subclass 153) Puzzles in which the solution is obtained by folding or relatively-moving strips or disks.