US PATENT SUBCLASS 340 / 870.31
.~.~ Inductive transmitter

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.~.~ Inductive transmitter {1}
870.32  DF  .~.~.~> Mutual inductance {3}

DEFINITION

Classification: 340/870.31

Inductive transmitter:

(under subclass 870.3) Subject matter wherein changes in inductance convey the information to be transmitted.

(1) Note. Inductance is the property which opposes any change in an existing current in a circuit. Inductance is present only when the current is changing.

SEE OR SEARCH CLASS

336, Inductor Devices, appropriate subclasses for inductor devices, per se.