US PATENT SUBCLASS 473 / 372
.~.~.~ Containing metal

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

131  DF  GOLF {23}
351  DF  .~ Ball {8}
371  DF  .~.~ Particular unitary or layered construction {3}
372.~.~.~ Containing metal {1}
373  DF  .~.~.~.~> Diverse layer between spherical core and cover

DEFINITION

Classification: 473/372

Containing metal:

(under subclass 371) Subject matter wherein at least a part of the spherical object is formed of metal or a metal composition.