CA277231A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number
CA277231A
CA277231A CA277231A CA277231DA CA277231A CA 277231 A CA277231 A CA 277231A CA 277231 A CA277231 A CA 277231A CA 277231D A CA277231D A CA 277231DA CA 277231 A CA277231 A CA 277231A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
telephone
exchange
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
CA277231A
Other languages
English (en)
Inventor
J. Wynne James
E. Lundell Alben
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.)
INTERNATIONAL WESTERN ELECTRIC Co
AT&T Corp
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA277231A publication Critical patent/CA277231A/fr
Expired legal-status Critical Current

Links

CA277231A Systeme de central telephonique Expired CA277231A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA277231T

Publications (1)

Publication Number Publication Date
CA277231A true CA277231A (fr) 1928-01-17

Family

ID=35210322

Family Applications (1)

Application Number Title Priority Date Filing Date
CA277231A Expired CA277231A (fr) Systeme de central telephonique

Country Status (1)

Country Link
CA (1) CA277231A (fr)

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