| 33 / | HD | GEOMETRICAL INSTRUMENTS |
| 700 | DF | DISTANCE MEASURING {13} |
| 713 | DF | .~ Sounding type {6} |
| 721 | DF | .~.~ For nongaseous material {1} |
| 722 | DF | .~.~.~ Liquid (e.g. dipstick) {7} |
| 730 | ![]() | .~.~.~.~ With holder or housing for indicator {1} |
| 731 | DF | .~.~.~.~.~> Including seal |