H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/121, 379/47,
H04M 3/64 (2006.01) H04M 3/60 (2006.01)
Patent
CA 1090496
ABSTRACT A telephone control console includes a visual display unit, a data input unit, audio frequency input and output units, a microprocessor, and data transmission and reception units. The microprocessor controls the visual display unit in accordance with data received by the data reception unit and in accordance with data input through the data input unit, and also controls the transmission of data by the data transmission unit in accordance with instructions from the data input unit. The audio frequency input and output units include an input and output for an operator's telephone
286807
Card Stuart E.
Griffiths David F.
Post Office (the)
Ridout & Maybee Llp
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