CA238909A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA238909A
CA238909A CA238909A CA238909DA CA238909A CA 238909 A CA238909 A CA 238909A CA 238909 A CA238909 A CA 238909A CA 238909D A CA238909D A CA 238909DA CA 238909 A CA238909 A CA 238909A
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
CA238909A
Other languages
English (en)
Inventor
J. Ray Arthur
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 CA238909A publication Critical patent/CA238909A/fr
Expired legal-status Critical Current

Links

CA238909A Systeme telephonique Expired CA238909A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238909T

Publications (1)

Publication Number Publication Date
CA238909A true CA238909A (fr) 1924-03-25

Family

ID=35142940

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238909A Expired CA238909A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA238909A (fr)

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