CA219454A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA219454A
CA219454A CA219454A CA219454DA CA219454A CA 219454 A CA219454 A CA 219454A CA 219454 A CA219454 A CA 219454A CA 219454D A CA219454D A CA 219454DA CA 219454 A CA219454 A CA 219454A
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
CA219454A
Other languages
English (en)
Inventor
Jacobsen Emil
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 CA219454A publication Critical patent/CA219454A/fr
Expired legal-status Critical Current

Links

CA219454A Systeme telephonique Expired CA219454A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA219454T

Publications (1)

Publication Number Publication Date
CA219454A true CA219454A (fr) 1922-06-06

Family

ID=35113898

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219454A Expired CA219454A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA219454A (fr)

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