CA436880A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA436880A
CA436880A CA436880A CA436880DA CA436880A CA 436880 A CA436880 A CA 436880A CA 436880 A CA436880 A CA 436880A CA 436880D A CA436880D A CA 436880DA CA 436880 A CA436880 A CA 436880A
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
CA436880A
Other languages
English (en)
Inventor
H. Herrick Roswell
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 CA436880A publication Critical patent/CA436880A/fr
Expired legal-status Critical Current

Links

CA436880A Systeme telephonique Expired CA436880A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA436880T

Publications (1)

Publication Number Publication Date
CA436880A true CA436880A (fr) 1946-09-10

Family

ID=35552115

Family Applications (1)

Application Number Title Priority Date Filing Date
CA436880A Expired CA436880A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA436880A (fr)

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