CA211257A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA211257A
CA211257A CA211257A CA211257DA CA211257A CA 211257 A CA211257 A CA 211257A CA 211257 A CA211257 A CA 211257A CA 211257D A CA211257D A CA 211257DA CA 211257 A CA211257 A CA 211257A
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
CA211257A
Other languages
English (en)
Inventor
Owens Roy
E. Meyer Trygve
D. Willis Bernard
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
Automatic Electric Co
Original Assignee
Northern Electric Co Ltd
Automatic Electric Co
Publication date
Application granted granted Critical
Publication of CA211257A publication Critical patent/CA211257A/fr
Expired legal-status Critical Current

Links

CA211257A Systeme telephonique Expired CA211257A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA211257T

Publications (1)

Publication Number Publication Date
CA211257A true CA211257A (fr) 1921-05-03

Family

ID=35105036

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211257A Expired CA211257A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA211257A (fr)

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