US PATENT SUBCLASS 379 / 88.09
.~.~ Statistical analysis (e.g., time, date, length of message, etc.)

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

67.1  DF  AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS {13}
88.08  DF  .~ Message signal analysis {2}
88.09.~.~ Statistical analysis (e.g., time, date, length of message, etc.)

DEFINITION

Classification: 379/88.09

Statistical analysis (e.g., time, date, length of message, etc.):

(under subclass 88.08) Message signal analysis further comprising a means to collect, organize, or interpret specific quantitative audio message signal data.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+, for a means to determine the length, number, frequency, or cost of telephone usage combined with telephone equipment.