US PATENT SUBCLASS 473 / 231
.~.~.~ Adjustable swingable implement, or swing or position indicator

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

131  DF  GOLF {23}
219  DF  .~ Practice swingable implement or indicator associated with swingable implement {4}
226  DF  .~.~ Device attachable to or integral with swingable implement {6}
231.~.~.~ Adjustable swingable implement, or swing or position indicator {6}
232  DF  .~.~.~.~> Alterable shaft provides swing force indication
233  DF  .~.~.~.~> Swing speed indicator {1}
235  DF  .~.~.~.~> Projectile retained by head of swingable implement during swing
236  DF  .~.~.~.~> Projection on face of swingable implement head provides reduced striking area
237  DF  .~.~.~.~> Indication is a mark made by implement swing
238  DF  .~.~.~.~> Adjustable implement or static position indicator (e.g., with respect to the golfer, projectile, target, etc.) {4}

DEFINITION

Classification: 473/231

Adjustable swingable implement or swing or position aid:

(under subclass 226) Subject matter wherein the structure comprises parts on the first or second instrument which are movable with respect to each other to change their relative position on the instrument; or wherein the structure is to provide the player with information concerning a characteristic of the motion of the instrument while it is being swung; or to provide the player with information concerning the location of the first or second instrument with respect to the player or another device.