US PATENT SUBCLASS 273 / 154
.~ Balancing ovoids

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

153 R  DF  PUZZLES {6}
154.~ Balancing ovoids

DEFINITION

Classification: 273/154

(under subclass 153) Puzzles in the shape of ovoids that can by manipulation be so balanced that they will stand on end.