US PATENT SUBCLASS 473 / 128
.~.~.~ Thumb or finger hole grip

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

54  DF  BOWLING {6}
125  DF  .~ Ball {2}
127  DF  .~.~ With specific grip means {1}
128.~.~.~ Thumb or finger hole grip {2}
129  DF  .~.~.~.~> Size or depth adjusting means
130  DF  .~.~.~.~> Removable insert or bushing

DEFINITION

Classification: 473/128

Thumb or finger hole grip:

(under subclass 127) Subject matter wherein the ball includes at least one recess therein for the purpose of receiving at least one digit of the hand of the bowler in order to facilitate holding of the ball by the bowler.

SEE OR SEARCH CLASS

33, Geometrical Instruments,

509+, for a gauge adapted to determine the position of the holes to be made in an undrilled bowling ball so that the undrilled bowling ball can be marked and drilled to custom fit it to an individual, particularly subclass 510 for a gauge which includes a simulated bowling ball, which gauge is used to determine the spacing between the thumb and the fingers used by the individual to grip a bowling ball.

408, Cutting by Use of Rotating Axially Moving Tool,

1, for a method of drilling a bowling ball and Digest 1 for a bowling ball drill.