US PATENT SUBCLASS 314 / 118
.~.~.~ With control of series magnet

Current as of: June, 1999
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314 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: CONSUMABLE ELECTRODES

113  DF  ELECTROMAGNETIC OPERATOR AND/OR FEED-CONTROLLING {3}
114  DF  .~ With control of the electromagnet circuit {2}
117  DF  .~.~ Shunt magnet control {1}
118.~.~.~ With control of series magnet

DEFINITION

Classification: 314/118

(under subclass 117) Subject matter wherein the current or voltage supplies to an electromagnet connected in series with the discharge electrodes is controlled.