US PATENT SUBCLASS 473 / 557
.~.~.~ Stringing or string-stretching device

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

516  DF  PLAYER HELD AND POWERED, NONMECHANICAL PROJECTOR, PER SE, FOR PROJECTING AERIAL PROJECTILE BY STRIKING; PART THEREOF OR ACCESSORY THEREFOR {8}
524  DF  .~ Racket or paddle; accessory therefor (e.g., a tennis racket, tennis racket press, etc.) {19}
553  DF  .~.~ Accessory for use with racket or paddle (e.g., used with or for tennis racket, etc.) {3}
557.~.~.~ Stringing or string-stretching device

DEFINITION

Classification: 473/557

Stringing or string-stretching device:

(under subclass 553) Subject matter comprising (a) a means for threading one or more striking-surface strings of a racket through or about the frame of the racket, (b) a means for applying or maintaining the desired degree of tension to or on one or more striking-surface strings of a racket while it is being strung or restrung, or (c) a means for temporarily displacing a previously strung striking-surface string or strings of a racket from the plane of the striking surface in order to facilitate the threading of an additional string through or about the frame of a racket.