| 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} |
| 728 | DF | .~.~ Module {4} |
| 736 | DF | .~.~.~ With printed circuit boards {8} |
| 743 | ![]() | .~.~.~.~ Solder connection |