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 | DF | .~.~.~ Responsive to transducer support condition (e.g., movement or position) {2} |
228 | .~.~.~.~ Controllable position |