Combined control device and display unit for telephone exchange

Recording – communication – or information retrieval equipment – Computer – data processor equipment

Patent

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Details

D14 52, D14100, D14113

Patent

active

D02731096

REFERENCES:
patent: D202555 (1965-10-01), Meunier
patent: D259933 (1981-07-01), Foggia et al.
patent: D265314 (1982-07-01), Kitai
patent: D266762 (1982-11-01), Gibson
Telephony, Jan. 1, 1979, p. 30, GTE-60 PBX with display.

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