CA238140A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA238140A
CA238140A CA238140A CA238140DA CA238140A CA 238140 A CA238140 A CA 238140A CA 238140 A CA238140 A CA 238140A CA 238140D A CA238140D A CA 238140DA CA 238140 A CA238140 A CA 238140A
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
CA238140A
Other languages
English (en)
Inventor
E. Gardner John
G. Richardson Rodney
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 CA238140A publication Critical patent/CA238140A/fr
Expired legal-status Critical Current

Links

CA238140A Systeme telephonique Expired CA238140A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238140T

Publications (1)

Publication Number Publication Date
CA238140A true CA238140A (fr) 1924-02-26

Family

ID=35142172

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238140A Expired CA238140A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA238140A (fr)

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