CA277426A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number
CA277426A
CA277426A CA277426A CA277426DA CA277426A CA 277426 A CA277426 A CA 277426A CA 277426 A CA277426 A CA 277426A CA 277426D A CA277426D A CA 277426DA CA 277426 A CA277426 A CA 277426A
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
CA277426A
Other languages
English (en)
Inventor
Jacobsen Emil
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
International Western Electric Co Inc
Original Assignee
Western Electric Co Inc
International Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA277426A publication Critical patent/CA277426A/fr
Expired legal-status Critical Current

Links

CA277426A Systeme de central telephonique Expired CA277426A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA277426T

Publications (1)

Publication Number Publication Date
CA277426A true CA277426A (fr) 1928-01-24

Family

ID=35210517

Family Applications (1)

Application Number Title Priority Date Filing Date
CA277426A Expired CA277426A (fr) Systeme de central telephonique

Country Status (1)

Country Link
CA (1) CA277426A (fr)

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