US PATENT SUBCLASS 388 / 827
.~.~ With plural selectable speeds (e.g., manual switch)

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}
826  DF  .~ Field control, or field and armature control {1}
827.~.~ With plural selectable speeds (e.g., manual switch)

DEFINITION

Classification: 388/827

With plural selectable speeds (e.g., manual switch):

(under subclass 826) Subject matter including means for selection of two or more preset speeds.