CA161906A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA161906A
CA161906A CA000161906A CA161906DA CA161906A CA 161906 A CA161906 A CA 161906A CA 000161906 A CA000161906 A CA 000161906A CA 161906D A CA161906D A CA 161906DA CA 161906 A CA161906 A CA 161906A
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
CA000161906A
Other languages
English (en)
Inventor
Frank Robert Mcberty
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.)
Nortel Networks Ltd
Northern Electric and Manufacturing Co Ltd
Original Assignee
Nortel Networks Ltd
Northern Electric and Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nortel Networks Ltd, Northern Electric and Manufacturing Co Ltd filed Critical Nortel Networks Ltd
Application granted granted Critical
Publication of CA161906A publication Critical patent/CA161906A/fr
Expired legal-status Critical Current

Links

CA000161906A 1911-11-21 1911-11-21 Systeme d'echange telephonique Expired CA161906A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA161906T 1911-11-21

Publications (1)

Publication Number Publication Date
CA161906A true CA161906A (fr) 1915-04-13

Family

ID=45281594

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000161906A Expired CA161906A (fr) 1911-11-21 1911-11-21 Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA161906A (fr)

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