US PATENT SUBCLASS 473 / 404
.~ Green slope indicator

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

131  DF  GOLF {23}
404.~ Green slope indicator

DEFINITION

Classification: 473/404

Green slope indicator:

(under subclass 131) Subject matter wherein the equipment or device includes means to provide the player with information concerning degree of inclination of a putting surface.