| 33 / | HD | GEOMETRICAL INSTRUMENTS |
| 700 | DF | DISTANCE MEASURING {13} |
| 832 | DF | .~ Single contact with a work engaging support {3} |
| 833 | ![]() | .~.~ Adapted for a particular workpiece {3} |
| 834 | DF | .~.~.~> Coating or surface layer thickness |
| 835 | DF | .~.~.~> Reeled material |
| 836 | DF | .~.~.~> Depth of aperture or groove |