315 / | HD | ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS |
194 | DF | REGULATION OF THE CONTROL CURRENT AND/OR POTENTIAL APPLIED TO DISCHARGE CONTROL DISCHARGE DEVICE LOADS BY PHASE SHIFTING MEANS {2} |
195 | DF | .~ Plural load device systems {2} |
196 | .~.~ Inverse parallel connected asymmetric load devices {1} | |
197 | DF | .~.~.~> Discharge control discharge device in the control circuit |