CA306590A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA306590A
CA306590A CA306590A CA306590DA CA306590A CA 306590 A CA306590 A CA 306590A CA 306590 A CA306590 A CA 306590A CA 306590D A CA306590D A CA 306590DA CA 306590 A CA306590 A CA 306590A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA306590A
Other languages
English (en)
Inventor
H. Saunders Norman
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
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA306590A publication Critical patent/CA306590A/fr
Expired legal-status Critical Current

Links

CA306590A Systeme telephonique Expired CA306590A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA306590T

Publications (1)

Publication Number Publication Date
CA306590A true CA306590A (fr) 1930-12-09

Family

ID=35259741

Family Applications (1)

Application Number Title Priority Date Filing Date
CA306590A Expired CA306590A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA306590A (fr)

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