US PATENT SUBCLASS 324 / 174
.~.~.~ Permanent magnet type

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

160  DF  ELECTRICAL SPEED MEASURING {7}
166  DF  .~ Including speed-related frequency generator {5}
173  DF  .~.~ Including magnetic detector {1}
174.~.~.~ Permanent magnet type

DEFINITION

Classification: 324/174

(under subclass 173) Subject matter in which the means for producing a magnetic field includes a permanent magnet.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure,

152+, for rotary, dynamoelectric generator structure including permanent magnets.

322, Electricity: Single Generator Systems,

46, for single dynamoelectric permanent-magnet generator systems.