CA237621A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA237621A
CA237621A CA237621A CA237621DA CA237621A CA 237621 A CA237621 A CA 237621A CA 237621 A CA237621 A CA 237621A CA 237621D A CA237621D A CA 237621DA CA 237621 A CA237621 A CA 237621A
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
CA237621A
Other languages
English (en)
Inventor
J. Ray Arthur
F. Obergfell Herbert
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 CA237621A publication Critical patent/CA237621A/fr
Expired legal-status Critical Current

Links

CA237621A Systeme telephonique Expired CA237621A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA237621T

Publications (1)

Publication Number Publication Date
CA237621A true CA237621A (fr) 1924-02-05

Family

ID=35141649

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237621A Expired CA237621A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA237621A (fr)

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