CA231149A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA231149A
CA231149A CA231149A CA231149DA CA231149A CA 231149 A CA231149 A CA 231149A CA 231149 A CA231149 A CA 231149A CA 231149D A CA231149D A CA 231149DA CA 231149 A CA231149 A CA 231149A
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
CA231149A
Other languages
French (fr)
Inventor
T. Madsen Fred
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 CA231149A publication Critical patent/CA231149A/en
Expired legal-status Critical Current

Links

CA231149A Telephone system Expired CA231149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA231149T

Publications (1)

Publication Number Publication Date
CA231149A true CA231149A (en) 1923-05-15

Family

ID=35128521

Family Applications (1)

Application Number Title Priority Date Filing Date
CA231149A Expired CA231149A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA231149A (en)

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