US PATENT SUBCLASS 33 / 542
.~ Internal

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

501  DF  GAUGE {61}
542.~ Internal {6}
543  DF  .~.~> Concentricity or eccentricity
543.1  DF  .~.~> Fluid type
544  DF  .~.~> Earth cavity or tube {2}
544.4  DF  .~.~> Tapered probe
544.5  DF  .~.~> Having more than two probes {1}
542.1  DF  .~.~> Telescoping caliper or stem gauge

DEFINITION

Classification: 33/542

Internal:

(under subclass 501) Subject matter wherein the contact member contacts the inside of a passageway or cavity within an object or the earth.

SEE OR SEARCH THIS CLASS, SUBCLASS:

178, for an internal circular size gauge.

509+, for bowling ball gauges to determine where to drill the finger hole positions in a ball.

531, for an internal taper gauge.