US PATENT SUBCLASS 318 / 693
.~ Having impedance-type transmitter


Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

690  DF  SELF-SYNCHRONOUS TYPE OF MOTOR {5}
693.~ Having impedance-type transmitter


DEFINITION

Classification: 318/693

(under subclass 690) Subject matter in which the transmitter comprises an impedance device which is effective to vary the characteristics of the voltage or current supplied to the receiver device.