CA272029A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA272029A
CA272029A CA272029A CA272029DA CA272029A CA 272029 A CA272029 A CA 272029A CA 272029 A CA272029 A CA 272029A CA 272029D A CA272029D A CA 272029DA CA 272029 A CA272029 A CA 272029A
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
CA272029A
Other languages
French (fr)
Inventor
Wicks 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
Automatic Electric Co
Original Assignee
Northern Electric Co Ltd
Automatic Electric Co
Publication date
Application granted granted Critical
Publication of CA272029A publication Critical patent/CA272029A/en
Expired legal-status Critical Current

Links

CA272029A Telephone system Expired CA272029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA272029T

Publications (1)

Publication Number Publication Date
CA272029A true CA272029A (en) 1927-06-28

Family

ID=35202060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA272029A Expired CA272029A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA272029A (en)

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