CA307473A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA307473A
CA307473A CA307473A CA307473DA CA307473A CA 307473 A CA307473 A CA 307473A CA 307473 A CA307473 A CA 307473A CA 307473D A CA307473D A CA 307473DA CA 307473 A CA307473 A CA 307473A
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
CA307473A
Other languages
French (fr)
Inventor
I. Bellamy 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
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA307473A publication Critical patent/CA307473A/en
Expired legal-status Critical Current

Links

CA307473A Telephone system Expired CA307473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA307473T

Publications (1)

Publication Number Publication Date
CA307473A true CA307473A (en) 1931-01-06

Family

ID=35260625

Family Applications (1)

Application Number Title Priority Date Filing Date
CA307473A Expired CA307473A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA307473A (en)

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