US PATENT SUBCLASS 473 / FOR 111
.~ Ball curvers (273/28)

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

FOR 102  DF  BASEBALL (273/25) {3}
FOR 111.~ Ball curvers (273/28)

DEFINITION

Classification: 473/FOR.111

Foreign art collection including devices for the use of a pitcher for assisting in making a thrown ball take a curve.