US PATENT SUBCLASS 356 / 373
.~ Of article displacement

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

372  DF  BY MENSURATION {8}
373.~ Of article displacement {1}
374  DF  .~.~> Including moire' fringe generation

DEFINITION

Classification: 356/373

Of article displacement:

(under subclass 372) Subject matter wherein changes to an article either by movement or by replacement are measured.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4.09, and 4.1, for light interference measurement of displacement or distance over large distances.

356, and 358, for light interference measurement of small displacement or distance.