| 73 / | HD | MEASURING AND TESTING |
| 863 | DF | SAMPLER, SAMPLE HANDLING, ETC. {11} |
| 864 | DF | .~ Capture device {9} |
| 864.51 | DF | .~.~ Receptacle type {5} |
| 864.53 | DF | .~.~.~ Mold {4} |
| 864.55 | DF | .~.~.~.~ With diminutive fill passageway {1} |
| 864.56 | ![]() | .~.~.~.~.~ Mating sections {1} |
| 864.57 | DF | .~.~.~.~.~.~> Labyrinth |