US PATENT SUBCLASS 369 / 166
.~.~.~.~.~ Recording

Current as of: June, 1999
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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  DF  .~.~.~ Sound box {6}
165  DF  .~.~.~.~ Perpendicular mechanical modulation {3}
166.~.~.~.~.~ Recording

DEFINITION

Classification: 369/166

Recording:

(under subclass 165) Subject matter wherein the stylus modulates the storage medium by cutting its surface.