| 29 / | HD | METAL WORKING |
| 592 | DF | METHOD OF MECHANICAL MANUFACTURE {54} |
| 592.1 | DF | .~ Electrical device making {14} |
| 825 | DF | .~.~ Conductor or circuit manufacturing {8} |
| 874 | DF | .~.~.~ Contact or terminal manufacturing {3} |
| 876 | DF | .~.~.~.~ By assembling plural parts {5} |
| 877 | DF | .~.~.~.~.~ With bonding {1} |
| 878 | ![]() | .~.~.~.~.~.~ Of fused material {1} |
| 879 | DF | .~.~.~.~.~.~.~> Metal {1} |