CA238573A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA238573A
CA238573A CA238573A CA238573DA CA238573A CA 238573 A CA238573 A CA 238573A CA 238573 A CA238573 A CA 238573A CA 238573D A CA238573D A CA 238573DA CA 238573 A CA238573 A CA 238573A
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
CA238573A
Other languages
English (en)
Inventor
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
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA238573A publication Critical patent/CA238573A/fr
Expired legal-status Critical Current

Links

CA238573A Systeme telephonique Expired CA238573A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238573T

Publications (1)

Publication Number Publication Date
CA238573A true CA238573A (fr) 1924-03-11

Family

ID=35142604

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238573A Expired CA238573A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA238573A (fr)

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