US PATENT SUBCLASS 473 / 258
.~.~.~ Head or shaft continuously engaged during swing

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}
257  DF  .~.~ Swingable implement swing path indicator {2}
258.~.~.~ Head or shaft continuously engaged during swing {2}
259  DF  .~.~.~.~> Closed loop
260  DF  .~.~.~.~> Swingable implement head engaged

DEFINITION

Classification: 473/258

Head or shaft continuously engaged during swing:

(under subclass 257) Subject matter wherein the first or second instrument comprises a longitudinal stem extending from an object striking end, and wherein the information providing means comprises a structure having a surface which contacts the stem or the object striking end during the entire path of travel of the swung instrument.

SEE OR SEARCH THIS CLASS, SUBCLASS:

229, for practice clubs which are fixedly attached to a static structure.