73 / | HD | MEASURING AND TESTING |
862 | DF | DYNAMOMETERS {5} |
862.381 | DF | .~ Responsive to force {13} |
862.391 | DF | .~.~ To determine tension on a flexible element {4} |
862.451 | DF | .~.~.~ By measuring deflection or a deflecting force {5} |
862.453 | .~.~.~.~ For testing a drive belt |