Electromagnetic telephone coupling device
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United States of America Patent
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-
Nov 15, 1983
Grant Date -
N/A
app pub date -
Oct 26, 1981
filing date -
Oct 27, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a device which permits to transmit and to receive signals through a telephone line by means of an electromagnetic linking brought about in correspondence with at least one inductive element of a telephone set, without any necessity of interrupting the line which feeds the set concerned.
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