| 369 / | HD | DYNAMIC INFORMATION STORAGE OR RETRIEVAL |
| 176 | DF | DYNAMIC MECHANISM SUBSYSTEM {8} |
| 215 | DF | .~ Having power driven transducer assembly {6} |
| 225 | DF | .~.~ Restoring after passive tracking {2} |
| 226 | ![]() | .~.~.~ Responsive to transducer support condition (e.g., movement or position) {2} |
| 227 | DF | .~.~.~.~> Numerical count replay |
| 228 | DF | .~.~.~.~> Controllable position |