US PATENT SUBCLASS 473 / 224
.~.~.~.~ Audible 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}
221  DF  .~.~ With electrical sensor or electrical indicator {3}
223  DF  .~.~.~ Integral with or attachable to swingable implement {1}
224.~.~.~.~ Audible indicator

DEFINITION

Classification: 473/224

Audible indicator:

(under subclass 223) Subject matter wherein the device produces a sound heard by the player.