| 73 / | HD | MEASURING AND TESTING |
| 862 | DF | DYNAMOMETERS {5} |
| 862.381 | DF | .~ Responsive to force {13} |
| 862.621 | DF | .~.~ By measuring elastic deformation {4} |
| 862.636 | ![]() | .~.~.~ Specific type of elastic member {3} |
| 862.637 | DF | .~.~.~.~> Flexible element (e.g., beam, plate, or web) {2} |
| 862.641 | DF | .~.~.~.~> Helical or spiral |
| 862.642 | DF | .~.~.~.~> Closed loop (e.g., ring or tube) |