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} |
155 | DF | .~.~ Mechanical conversion to or from sound {4} |
160 | | .~.~.~ Sound box {6} |
161 | DF | .~.~.~.~> With interchangeable styli |
162 | DF | .~.~.~.~> Including stylus pivoted from fixed casing |
163 | DF | .~.~.~.~> With sound modification |
164 | DF | .~.~.~.~> Convertible between lateral and perpendicular modulation modes |
165 | DF | .~.~.~.~> Perpendicular mechanical modulation {3} |
169 | DF | .~.~.~.~> Lateral mechanical modulation |