| 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} |
| 170 | ![]() | .~.~ Stylus holder or shield {1} |
| 171 | DF | .~.~.~> With structure to interchange styli {1} |