| 29 / | HD | METAL WORKING |
| 592 | DF | METHOD OF MECHANICAL MANUFACTURE {54} |
| 898 | DF | .~ Process for making bearing or component thereof {13} |
| 898.04 | DF | .~.~ Rotary bearing {3} |
| 898.042 | DF | .~.~.~ Plain bearing {2} |
| 898.043 | DF | .~.~.~.~ Self-adjusting or self-aligning, including ball and socket type, bearing and component making {4} |
| 898.044 | ![]() | .~.~.~.~.~ Deforming socket to secure ball {1} |
| 898.045 | DF | .~.~.~.~.~.~> Die-press shaping {1} |