CA317875A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA317875A
CA317875A CA317875A CA317875DA CA317875A CA 317875 A CA317875 A CA 317875A CA 317875 A CA317875 A CA 317875A CA 317875D A CA317875D A CA 317875DA CA 317875 A CA317875 A CA 317875A
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
CA317875A
Other languages
English (en)
Inventor
Frederick Crocker Thomas
Henry Voss 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 CA317875A publication Critical patent/CA317875A/fr
Expired legal-status Critical Current

Links

CA317875A Systeme telephonique Expired CA317875A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA317875T

Publications (1)

Publication Number Publication Date
CA317875A true CA317875A (fr) 1931-12-08

Family

ID=35278431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA317875A Expired CA317875A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA317875A (fr)

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