US PATENT SUBCLASS 33 / 501.8
.~.~ By electrical comparison

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

501  DF  GAUGE {61}
501.7  DF  .~ Tooth testing (e.g., gear, rack) {6}
501.8.~.~ By electrical comparison {1}
501.9  DF  .~.~.~> Including a probe

DEFINITION

Classification: 33/501.8

By electrical comparison:

(under subclass 501.7) Subject matter wherein the gear type element is examined by using an electrical reference pattern to observe similarities or differences.

SEE OR SEARCH CLASS

340, Communication: Electrical,

825.3, for intelligence comparison.

364, Electrical Computers and Data Processing Systems,

527+, for measuring or testing using specific data processing.