US PATENT SUBCLASS 204 / 556
.~.~ With measuring, testing, or sensing

Current as of: June, 1999
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204 /   HD   CHEMISTRY: ELECTRICAL AND WAVE ENERGY

*  DD  PROCESSES AND PRODUCTS {7}
554  DF  .~ Electrical (including simultaneous electrical and magnetic) separation or purification of liquid or magnetic treatment of liquid (other than separation) {7}
556.~.~ With measuring, testing, or sensing

DEFINITION

Classification: 204/556

With measuring, testing, or sensing:

(under subclass 554) Process which includes measuring, detecting, or testing a characteristic, condition, or property of the process or an element used in the process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

555, for electrical separation or purification of liquid with control responsive to sensed condition.

SEE OR SEARCH CLASS

73, Measuring and Testing, as the residual class for processes and apparatus for measuring or testing, per se. See also the (3) Note in the class definition of Class 73 for additional loci of other measuring and testing processes and apparatus of different types.

324, Electricity: Measuring and Testing, for measuring, testing, or sensing, per se, to determine electrical properties by electrical means even though nonelectrical values may be derived from the electrical properties determined.