CA421423A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA421423A
CA421423A CA421423A CA421423DA CA421423A CA 421423 A CA421423 A CA 421423A CA 421423 A CA421423 A CA 421423A CA 421423D A CA421423D A CA 421423DA CA 421423 A CA421423 A CA 421423A
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
CA421423A
Other languages
English (en)
Inventor
Sigford Peterson Edward
Oman Wright Carl
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 CA421423A publication Critical patent/CA421423A/fr
Expired legal-status Critical Current

Links

CA421423A Systeme telephonique Expired CA421423A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA421423T

Publications (1)

Publication Number Publication Date
CA421423A true CA421423A (fr) 1944-07-11

Family

ID=35532385

Family Applications (1)

Application Number Title Priority Date Filing Date
CA421423A Expired CA421423A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA421423A (fr)

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