H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/63, 379/67
H04M 19/08 (2006.01) H04M 19/00 (2006.01)
Patent
CA 1062823
ABSTRACT A current feed circuit for a telephone exchange transmission bridge comprising a pair of electronic circuit elements each of which has one terminal connected to a respective one of a pair of telephone lines and another terminal connected to one terminal of an electrical power supply. Each circuit element is a simulated inductance and can provide a resistive path for d.c. current from the power supply to a subscriber's telephone.
265072
Rogers Alastair S.
Thurlow Norman T.
LandOfFree
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