| 29 / | HD | METAL WORKING |
| 592 | DF | METHOD OF MECHANICAL MANUFACTURE {54} |
| 428 | DF | .~ Assembling or joining {21} |
| 464 | DF | .~.~ Associating parts by use of aligning means (e.g., use of a drift pin or a "fixture") {4} |
| 467 | ![]() | .~.~.~ Sequentially associating parts on stationary aligning means |