US PATENT SUBCLASS 273 / 108.41
.~.~.~ Movable surface

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

108  DF  SURFACE PROJECTILE GAME; GAME ELEMENT (E.G., TARGET, ETC.) OR ACCESSORY THEREFOR OTHER THAN PROJECTILE, PER SE) {6}
108.1  DF  .~ Simulated game (e.g., hockey, soccer, etc.) {11}
108.4  DF  .~.~ Football {1}
108.41.~.~.~ Movable surface

DEFINITION

Classification: 273/108.41

Movable surface:

(under subclass 108.4) A simulated football game wherein the projectile is advanced across the surface by vibrating, tilting, or otherwise translating the orientation of the surface.