US PATENT SUBCLASS 324 / 151 R
.~ With permanent magnet

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}
151 R.~ With permanent magnet {2}
152  DF  .~.~> Drag magnet
151 A  DF  .~.~> Permanent magnet core

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 324/151

(under subclass 76) Subject matter having a permanent magnet.

(1) Note. This subclass relates, for example, to D'Arsonval type instruments and to magnetic suspensions for instrument rotors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146, for this subject matter also having a magnetic field produced by an electromagnet.

171+, for similar subject matter not restricted to the measurement of electricity.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, 90.5, for a bearing having a magnetic suspension.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

302+, for permanent magnets, per se.