CA576082A - Poste de telephone a clef pour abonne et circuit de signalisation - Google Patents

Poste de telephone a clef pour abonne et circuit de signalisation

Info

Publication number
CA576082A
CA576082A CA576082A CA576082DA CA576082A CA 576082 A CA576082 A CA 576082A CA 576082 A CA576082 A CA 576082A CA 576082D A CA576082D A CA 576082DA CA 576082 A CA576082 A CA 576082A
Authority
CA
Canada
Prior art keywords
subscriber
key telephone
telephone station
signaling circuit
signaling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA576082A
Other languages
English (en)
Inventor
T. Carter Herman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA576082A publication Critical patent/CA576082A/fr
Expired legal-status Critical Current

Links

CA576082A Poste de telephone a clef pour abonne et circuit de signalisation Expired CA576082A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA576082T

Publications (1)

Publication Number Publication Date
CA576082A true CA576082A (fr) 1959-05-19

Family

ID=35751939

Family Applications (1)

Application Number Title Priority Date Filing Date
CA576082A Expired CA576082A (fr) Poste de telephone a clef pour abonne et circuit de signalisation

Country Status (1)

Country Link
CA (1) CA576082A (fr)

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