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} |
128 | DF | .~.~ With electrical information signal processing {5} |
130 | .~.~.~ Sensing of elastic deformation or relaxation of storage medium (e.g., skid type) |