US PATENT SUBCLASS 473 / 377
.~.~.~ Diverse cover and interior

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}
377.~.~.~ Diverse cover and interior

DEFINITION

Classification: 473/377

Diverse cover and interior:

(under subclass 371) Subject matter wherein the interior portion is formed from a material having a different physical (e.g., hardness, elasticity etc.) or chemical (e.g., kind of material, chemical composition, etc.) characteristic than the material of the striking surface.