| 33 / | HD | GEOMETRICAL INSTRUMENTS |
| 501 | DF | GAUGE {61} |
| 549 | DF | .~ With support for gauged article {3} |
| 551 | DF | .~.~ Profile {2} |
| 553 | DF | .~.~.~ Member contacts successive points on the article {1} |
| 554 | ![]() | .~.~.~.~ With recording of contact member position at each point on the article |