US PATENT SUBCLASS 324 / 146
.~.~ With permanent magnet (e.g., field, vane)

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

76.11  DF  MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46}
144  DF  .~ With electromagnetic field (e.g., dynamometer) {3}
146.~.~ With permanent magnet (e.g., field, vane)

DEFINITION

Classification: 324/146

(under subclass 144) Subject matter having a permanent magnet.

(1) Note. The permanent magnet may supplement the magnetic field produced by the electromagnet or it may be acted upon by the electromagnetic field.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, for similar subject matter having soft instead of hard iron.

SEE OR SEARCH CLASS

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, 299+, for similar subject matter, not restricted to the measurement of electricity.