US PATENT SUBCLASS 379 / 85
.~.~ Recording of telephone signal during normal operation

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

67.1  DF  AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS {13}
68  DF  .~ Dynamic audio signal recording or reproduction {4}
85.~.~ Recording of telephone signal during normal operation {1}
86  DF  .~.~.~> Inductive pickup

DEFINITION

Classification: 379/85

Recording of telephone signal during normal operation:

(under subclass 68) Subject matter wherein the record generated is of an audible signal in a telephone system, which signal exists independently of the recording device.

(1) Note. Normal operation includes, for example, two-way voice communication.