369 / | HD | DYNAMIC INFORMATION STORAGE OR RETRIEVAL |
99 | DF | SPECIFIC DETAIL OF INFORMATION HANDLING PORTION OF SYSTEM {4} |
127 | DF | .~ Mechanical modification or sensing of storage medium {6} |
135 | DF | .~.~ Specified structure of electrical transducing assembly {11} |
136 | .~.~.~ Multichannel (stereo cartridge) {2} | |
137 | DF | .~.~.~.~> By stress application to solid transducing element (e.g., piezoelectric) {1} |
139 | DF | .~.~.~.~> With details of damping or compliance |