CA596789A - Carrier telegraph switchboard supervisory system - Google Patents

Carrier telegraph switchboard supervisory system

Info

Publication number
CA596789A
CA596789A CA596789A CA596789DA CA596789A CA 596789 A CA596789 A CA 596789A CA 596789 A CA596789 A CA 596789A CA 596789D A CA596789D A CA 596789DA CA 596789 A CA596789 A CA 596789A
Authority
CA
Canada
Prior art keywords
supervisory system
carrier telegraph
switchboard
telegraph switchboard
carrier
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
CA596789A
Inventor
A. Gardner Leland
L. Hysko John
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.)
AT&T Corp
Original Assignee
John L Hysko
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA596789A publication Critical patent/CA596789A/en
Expired legal-status Critical Current

Links

CA596789A Carrier telegraph switchboard supervisory system Expired CA596789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA596789T

Publications (1)

Publication Number Publication Date
CA596789A true CA596789A (en) 1960-04-26

Family

ID=35812563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA596789A Expired CA596789A (en) Carrier telegraph switchboard supervisory system

Country Status (1)

Country Link
CA (1) CA596789A (en)

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