US PATENT SUBCLASS 340 / 870.32
.~.~.~ Mutual inductance

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

870.01  DF  CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) {15}
870.3  DF  .~ With particular transmitter (e.g., piezoelectric, dynamo) {3}
870.31  DF  .~.~ Inductive transmitter {1}
870.32.~.~.~ Mutual inductance {3}
870.33  DF  .~.~.~.~> Flux valve type (e.g., with movable saturating magnet)
870.34  DF  .~.~.~.~> Self-synchronous type
870.35  DF  .~.~.~.~> Differential type {1}

DEFINITION

Classification: 340/870.32

Mutual inductance:

(under subclass 870.31) Subject matter in which voltage is produced in one circuit by the magnetic field change in current in a neighboring circuit.