369 / | HD | DYNAMIC INFORMATION STORAGE OR RETRIEVAL |
176 | DF | DYNAMIC MECHANISM SUBSYSTEM {8} |
178 | DF | .~ Access of multiple storage elements (e.g., record changer) {14} |
191 | DF | .~.~ Storage disc fed to and removed from turntable {4} |
194 | .~.~.~ Coplanar storage |