CA227471A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA227471A
CA227471A CA227471A CA227471DA CA227471A CA 227471 A CA227471 A CA 227471A CA 227471 A CA227471 A CA 227471A CA 227471D A CA227471D A CA 227471DA CA 227471 A CA227471 A CA 227471A
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
CA227471A
Other languages
English (en)
Inventor
J. Ray Arthur
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 CA227471A publication Critical patent/CA227471A/fr
Expired legal-status Critical Current

Links

CA227471A Systeme telephonique Expired CA227471A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA227471T

Publications (1)

Publication Number Publication Date
CA227471A true CA227471A (fr) 1922-12-26

Family

ID=35123074

Family Applications (1)

Application Number Title Priority Date Filing Date
CA227471A Expired CA227471A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA227471A (fr)

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