CA307475A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA307475A
CA307475A CA307475A CA307475DA CA307475A CA 307475 A CA307475 A CA 307475A CA 307475 A CA307475 A CA 307475A CA 307475D A CA307475D A CA 307475DA CA 307475 A CA307475 A CA 307475A
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
CA307475A
Other languages
English (en)
Inventor
Wicks John
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 CA307475A publication Critical patent/CA307475A/fr
Expired legal-status Critical Current

Links

CA307475A Systeme telephonique Expired CA307475A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA307475T

Publications (1)

Publication Number Publication Date
CA307475A true CA307475A (fr) 1931-01-06

Family

ID=35260627

Family Applications (1)

Application Number Title Priority Date Filing Date
CA307475A Expired CA307475A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA307475A (fr)

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