US PATENT SUBCLASS 436 / 144
HYDROGEN, PER SE

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

Internet Version by PATENTEC © 1999      Terms of Use


436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

144HYDROGEN, PER SE

DEFINITION

Classification: 436/144

HYDROGEN, PER SE:

(under the class definition) Subject matter in which the test is for molecular hydrogen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, for hydrogen ion content test, i.e., pH.