CA510190A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA510190A
CA510190A CA510190A CA510190DA CA510190A CA 510190 A CA510190 A CA 510190A CA 510190 A CA510190 A CA 510190A CA 510190D A CA510190D A CA 510190DA CA 510190 A CA510190 A CA 510190A
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
CA510190A
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 CA510190A publication Critical patent/CA510190A/en
Expired legal-status Critical Current

Links

CA510190A Telephone systems Expired CA510190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA510190T

Publications (1)

Publication Number Publication Date
CA510190A true CA510190A (en) 1955-02-15

Family

ID=35661250

Family Applications (1)

Application Number Title Priority Date Filing Date
CA510190A Expired CA510190A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA510190A (en)

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