US PATENT SUBCLASS 324 / 438
.~ Using a pH determining device


Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

425  DF  ELECTROLYTE PROPERTIES {3}
438.~ Using a pH determining device


DEFINITION

Classification: 324/438

Using a pH determining device:

(under subclass 425) Subject matter using a device designed to determine the hydrogen ion concentration of an electrolyte.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

242+, for pH cells, per se.

436, Chemistry: Analytical and Immunological Testing,

1+, for this subject matter involving a chemical reaction, such as, for example, tests in which an electrolytic determination is made subsequent to a chemical reaction.