| 369 / | HD | DYNAMIC INFORMATION STORAGE OR RETRIEVAL | 
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| 176 | DF | DYNAMIC MECHANISM SUBSYSTEM {8} | 
| 244 |  | .~ Specific detail of transducer assembly support structure (e.g., tone arm) {8} | 
| 245 | DF | .~.~> With manual tone arm displacement adjunct (e.g., cueing) {1} | 
| 247 | DF | .~.~> Vibration or resonance suppression (e.g., damping) {1} | 
| 249 | DF | .~.~> Having linear guide | 
| 250 | DF | .~.~> Pivoted arm with tracking path compensation | 
| 251 | DF | .~.~> Having application of counterbalancing force {3} | 
| 255 | DF | .~.~> Having specified bearing structure | 
| 256 | DF | .~.~> Mechanical details of cartridge mounting | 
| 257 | DF | .~.~> Rest |