US PATENT SUBCLASS 473 / 582
.~.~ Head structure

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

569  DF  PROJECTILE, PER SE; PART THEREOF OR ACCESSORY THEREFOR {28}
578  DF  .~ Arrow, dart, or shuttlecock; part thereof {4}
582.~.~ Head structure {2}
583  DF  .~.~.~> Broadhead {1}
585  DF  .~.~.~> And vane structure (i.e., flight guiding or stabilizing means)

DEFINITION

Classification: 473/582

Head structure:

(under subclass 578) Subject matter either(a) consisting of the target-contacting head portion, per se, of an elongated missile intended to have such target-contacting head portion located at one end thereof, or (b) relating to the target-contacting head portion of an elongated missile having such target-contacting head portion located at one end thereof whenever significance is attributed to such head portion.

(1) Note. A document, in order to be placed in this and the indented subclasses, must claim significant target-contacting head structure. A mere disclosure of such head structure or such head merely named in a claim is not sufficient to place a document in this and the indented subclasses.