CA562753A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA562753A
CA562753A CA562753A CA562753DA CA562753A CA 562753 A CA562753 A CA 562753A CA 562753 A CA562753 A CA 562753A CA 562753D A CA562753D A CA 562753DA CA 562753 A CA562753 A CA 562753A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA562753A
Other languages
French (fr)
Inventor
E. Lomax Clarence
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 CA562753A publication Critical patent/CA562753A/en
Expired legal-status Critical Current

Links

CA562753A Telephone systems Expired CA562753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA562753T

Publications (1)

Publication Number Publication Date
CA562753A true CA562753A (en) 1958-09-02

Family

ID=35729196

Family Applications (1)

Application Number Title Priority Date Filing Date
CA562753A Expired CA562753A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA562753A (en)

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