| 369 / | HD | DYNAMIC INFORMATION STORAGE OR RETRIEVAL |
| 176 | DF | DYNAMIC MECHANISM SUBSYSTEM {8} |
| 244 | DF | .~ Specific detail of transducer assembly support structure (e.g., tone arm) {8} |
| 251 | DF | .~.~ Having application of counterbalancing force {3} |
| 252 | ![]() | .~.~.~ Lateral (e.g., antiskating) |