| 73 / | HD | MEASURING AND TESTING |
| 11.04 | ![]() | TESTING OF SHOCK ABSORBING DEVICE (E.G., AUTOMOBILE SHOCK ABSORBER, GUN RECOIL APPARATUS, ETC.) {4} |
| 11.05 | DF | .~> Torsional vibration damper |
| 11.06 | DF | .~> Railway draft gear |
| 11.07 | DF | .~> In situ vehicle suspension {1} |
| 11.09 | DF | .~> By applying reciprocating or oscillating motion |