US PATENT SUBCLASS 473 / 160
.~.~.~.~ Selectively contourable (e.g., slope simulating surface, etc.)

Current as of: June, 1999
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473 /   HD   GAMES USING TANGIBLE PROJECTILE

131  DF  GOLF {23}
150  DF  .~ Projectile addressing surface and target, or distance marker (e.g., course, putting green with cup, driving range, miniature golf course, etc.) {7}
157  DF  .~.~ Non-earth fairway {3}
159  DF  .~.~.~ Target is surface positioned aperture {3}
160.~.~.~.~ Selectively contourable (e.g., slope simulating surface, etc.) {1}
161  DF  .~.~.~.~.~> Motor actuation

DEFINITION

Classification: 473/160

Selectively contourable (e.g., slope simulating surface, etc.):

(under subclass 159) Subject matter including means to change the slope of the surface to influence the path of travel of the object over the surface.