| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| 600 | DF | HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS {11} |
| 679 | DF | .~ For electronic systems and devices {15} |
| 688 | DF | .~.~ With cooling means {2} |
| 704 | DF | .~.~.~ Thermal conduction {8} |
| 717 | DF | .~.~.~.~ For active solid state devices {1} |
| 718 | DF | .~.~.~.~.~ For integrated circuit {1} |
| 719 | ![]() | .~.~.~.~.~.~ Circuit board mounted |