US PATENT SUBCLASS 388 / 841
.~.~.~.~ Inductive


Current as of: June, 1999
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388 /   HD   ELECTRICITY: MOTOR CONTROL SYSTEMS

825  DF  OPEN LOOP SPEED CONTROL SYSTEM FOR DC MOTOR WITH COMMUTATOR {3}
830  DF  .~ Analog armature control {7}
838  DF  .~.~ With plural selectable speeds (e.g., with manual switch, potentiometer {1}
839  DF  .~.~.~ By selecting impedance {2}
841.~.~.~.~ Inductive


DEFINITION

Classification: 388/841

Inductive:

(under subclass 839) Subject matter wherein the impedance device is an inductor.