US PATENT SUBCLASS 473 / 337
.~.~.~.~.~.~ Perpendicular to projectile 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}
334  DF  .~.~.~ Selectively adjustable weighting element {1}
335  DF  .~.~.~.~ Embedded in head {3}
336  DF  .~.~.~.~.~ Elongated horizontal bore {1}
337.~.~.~.~.~.~ Perpendicular to projectile striking face

DEFINITION

Classification: 473/337

Perpendicular to projectile striking face:

(under subclass 336) Subject matter wherein the axis of the duct is normal to a ball contacting surface.