US PATENT SUBCLASS 73 / 385
.~ Mercury

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

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

384  DF  BAROMETER (E.G., ALTIMETER) {2}
385.~ Mercury

DEFINITION

Classification: 73/385

(under subclass 384) Barometers in which a mercury column is displaced by changes in atmospheric pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

747+, for U-tube, liquid column pressure gauges.