US PATENT SUBCLASS 334 / 20
.~.~ Motor-operated

Current as of: June, 1999
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334 /   HD   TUNERS

17  DF  TUNER UNIT WITH ELECTROMAGNETIC OPERATOR {3}
18  DF  .~ Band scanning or selector circuit {2}
20.~.~ Motor-operated {4}
21  DF  .~.~.~> Predetermined frequency selector
22  DF  .~.~.~> With reversing means
23  DF  .~.~.~> Clutch means
24  DF  .~.~.~> Relay-controlled {1}

DEFINITION

Classification: 334/20

(under subclass 18) Subject matter wherein the electromagnetic operator is a motor of the rotating armature type.

(1) Note. Motors of the reciprocating or oscillating type are classified in subclass 18 above if they are driving a band scanning or selector circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9, for remote controlled tuners which may use an electric

motor.

SEE OR SEARCH CLASS

318, Electricity: Motive Power Systems, appropriate subclass for motor control systems, per se.