US PATENT SUBCLASS 356 / 358
.~.~ Of displacement or distance

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


356 /   HD   OPTICS: MEASURING AND TESTING

345  DF  BY LIGHT INTERFERENCE (E.G., INTERFEROMETERS) {11}
357  DF  .~ For dimensional measurement (e.g., thickness) {1}
358.~.~ Of displacement or distance

DEFINITION

Classification: 356/358

Of displacement of distance:

(under subclass 357) Subject matter including means for

measuring small changes in position of an article or small length of space between two points.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

373, for optical measurement of displacement or distance, per se.