US PATENT SUBCLASS 33 / 509
.~ Bowling ball


Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

501  DF  GAUGE {61}
509.~ Bowling ball {1}
510  DF  .~.~> Grip


DEFINITION

Classification: 33/509

Bowling ball:

(under subclass 501) Subject matter wherein the contact member determines 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 the ball to individuals.

(1) Note. Here are contact type gauges to show the angle that the bowling fingers makes with the surface of a bowling ball.

(2) Note. "Pitch" is the angle the finger hole center line makes with the surface of a ball.

SEE OR SEARCH THIS CLASS, SUBCLASS:

391+, for a pendulum type indicator of direction of fare caused by the attraction of the mass of an article to the mass of the earth.

534+, for an angle gauge generally.

542+, for an internal gauge.

SEE OR SEARCH CLASS 408, Cutting by the Use of Rotating Axially Moving Tool,

1+, for a method of drilling a bowling ball.

434, Education and Demonstration

249, for teaching bowling.

473, Amusement Devices: Games,

54+, for a bowling game, particularly subclasses 55+ for a bowling practice or assist device, subclasses 67+ for an indicator for a bowling pin handling device, and subclasses 125+ for a bowling ball with means to change finger hole location or size.