| 363 / | HD | ELECTRIC POWER CONVERSION SYSTEMS |
| 13 | DF | CURRENT CONVERSION {25} |
| 74 | DF | .~ With condition responsive means to control the output voltage or current {3} |
| 78 | DF | .~.~ Cooperating separate sensing and control means {3} |
| 95 | DF | .~.~.~ For inverter {3} |
| 99 | ![]() | .~.~.~.~ With electron tube or valve control means in the line circuit |