(under subclass 403) Subject matter wherein the radiotelephone system is combined with a structure for retention of a message signal or for reproduction thereof.
SEE OR SEARCH CLASS
365, Static Information Storage and Retrieval, appropriate subclasses for a static memory element or system, per se.
369, Dynamic Information Storage or Retrieval, appropriate subclasses for audio information storage or retrieval, per se.
379, Telephonic Communications,
67.1+, for a message storage or retrieval within a landline telephone network.
395, Information Processing System Organization, 2.09+, for speech signal processing.
