CA210754A - Systeme telephonique a mesure du service - Google Patents

Systeme telephonique a mesure du service

Info

Publication number
CA210754A
CA210754A CA210754A CA210754DA CA210754A CA 210754 A CA210754 A CA 210754A CA 210754 A CA210754 A CA 210754A CA 210754D A CA210754D A CA 210754DA CA 210754 A CA210754 A CA 210754A
Authority
CA
Canada
Prior art keywords
telephone system
measured service
service telephone
measured
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
CA210754A
Other languages
English (en)
Inventor
Walter Owen William
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
Automatic Electric Co
Original Assignee
Northern Electric Co Ltd
Automatic Electric Co
Publication date
Application granted granted Critical
Publication of CA210754A publication Critical patent/CA210754A/fr
Expired legal-status Critical Current

Links

CA210754A Systeme telephonique a mesure du service Expired CA210754A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA210754T

Publications (1)

Publication Number Publication Date
CA210754A true CA210754A (fr) 1921-04-19

Family

ID=35104533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA210754A Expired CA210754A (fr) Systeme telephonique a mesure du service

Country Status (1)

Country Link
CA (1) CA210754A (fr)

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