CA238914A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA238914A
CA238914A CA238914A CA238914DA CA238914A CA 238914 A CA238914 A CA 238914A CA 238914 A CA238914 A CA 238914A CA 238914D A CA238914D A CA 238914DA CA 238914 A CA238914 A CA 238914A
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
CA238914A
Other languages
English (en)
Inventor
T. Madsen Fred
T. 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 CA238914A publication Critical patent/CA238914A/fr
Expired legal-status Critical Current

Links

CA238914A Systeme telephonique Expired CA238914A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA238914T

Publications (1)

Publication Number Publication Date
CA238914A true CA238914A (fr) 1924-03-25

Family

ID=35142945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238914A Expired CA238914A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA238914A (fr)

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