US PATENT SUBCLASS 473 / 365
.~.~.~.~ Having particular cover

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

131  DF  GOLF {23}
351  DF  .~ Ball {8}
356  DF  .~.~ Wound interior {1}
357  DF  .~.~.~ Surrounding non-wound spherical core {5}
365.~.~.~.~ Having particular cover

DEFINITION

Classification: 473/365

Having particular cover:

(under subclass 357) Subject matter wherein significance is attributed to a physical (e.g., hardness, elasticity, etc.) or chemical (e.g., kind of material, chemical composition, etc.) characteristic of the striking face.