| 333517 |
Deburring machines, metalworking, manufacturing |
| 333517 |
Die sinking machines, metalworking, manufacturing |
| 333517 |
Die-casting machines, metalworking, manufacturing |
| 333517 |
Drill presses, metalworking, manufacturing |
| 333517 |
Drilling machines, metalworking, manufacturing |
| 333517 |
Drop hammers, metal forging and shaping, manufacturing |
| 333517 |
Duplicating machines (e.g., key cutting), metalworking, manufacturing |
| 333517 |
Electrochemical milling machines, metalworking, manufacturing |
| 333517 |
Electrode discharge metal cutting machines manufacturing |
| 333517 |
Electrolytic metal cutting machines manufacturing |