CA227656A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA227656A
CA227656A CA227656A CA227656DA CA227656A CA 227656 A CA227656 A CA 227656A CA 227656 A CA227656 A CA 227656A CA 227656D A CA227656D A CA 227656DA CA 227656 A CA227656 A CA 227656A
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
CA227656A
Other languages
English (en)
Inventor
E. Lundell Alben
J. Wynne James
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
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA227656A publication Critical patent/CA227656A/fr
Expired legal-status Critical Current

Links

CA227656A Systeme d'echange telephonique Expired CA227656A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA227656T

Publications (1)

Publication Number Publication Date
CA227656A true CA227656A (fr) 1923-01-02

Family

ID=35123259

Family Applications (1)

Application Number Title Priority Date Filing Date
CA227656A Expired CA227656A (fr) Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA227656A (fr)

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