US PATENT SUBCLASS 473 / 159
.~.~.~ Target is surface positioned aperture

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.~.~.~ Target is surface positioned aperture {3}
160  DF  .~.~.~.~> Selectively contourable (e.g., slope simulating surface, etc.) {1}
162  DF  .~.~.~.~> Collapsible (e.g., for storage, etc.)
163  DF  .~.~.~.~> Projectile return

DEFINITION

Classification: 473/159

Target is surface positioned aperture:

(under subclass 157) Subject matter wherein the member at which the object is aimed comprises means defining an opening in the surface.