CA490053A - Telephone substation apparatus for local and common battery service - Google Patents

Telephone substation apparatus for local and common battery service

Info

Publication number
CA490053A
CA490053A CA490053A CA490053DA CA490053A CA 490053 A CA490053 A CA 490053A CA 490053 A CA490053 A CA 490053A CA 490053D A CA490053D A CA 490053DA CA 490053 A CA490053 A CA 490053A
Authority
CA
Canada
Prior art keywords
local
battery service
common battery
substation apparatus
telephone substation
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
CA490053A
Other languages
French (fr)
Inventor
C. Pye Harold
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 CA490053A publication Critical patent/CA490053A/en
Expired legal-status Critical Current

Links

CA490053A Telephone substation apparatus for local and common battery service Expired CA490053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA490053T

Publications (1)

Publication Number Publication Date
CA490053A true CA490053A (en) 1953-01-27

Family

ID=35629782

Family Applications (1)

Application Number Title Priority Date Filing Date
CA490053A Expired CA490053A (en) Telephone substation apparatus for local and common battery service

Country Status (1)

Country Link
CA (1) CA490053A (en)

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