US PATENT SUBCLASS 33 / 543
.~.~ Concentricity or eccentricity

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

501  DF  GAUGE {61}
542  DF  .~ Internal {6}
543.~.~ Concentricity or eccentricity

DEFINITION

Classification: 33/543

Concentricity or eccentricity:

Subject matter under 542 wherein the passageway or cavity has an axis and the contact member determines if points of the passageway or cavity are or are not at the same distance from the axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

550, for an external concentricity gauge having a support for a gauged article.

556+, for a movable contact probe to test external concentricity.