US PATENT SUBCLASS 473 / 330
.~.~.~ Curved, grooved, or roughened striking face


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

131  DF  GOLF {23}
282  DF  .~ Club or club support {17}
324  DF  .~.~ Head {15}
330.~.~.~ Curved, grooved, or roughened striking face {1}
331  DF  .~.~.~.~> Plural grooves


DEFINITION

Classification: 473/330

Curved, grooved, or roughened striking face:

(under subclass 324) Subject matter wherein the ball-striking portion comprises a surface adapted to contact the ball wherein the surface includes (1) a concave or convex shape, (2) a striation, or (3) a non-smooth texture.