CA824219A - Supervisory signalling circuits - Google Patents

Supervisory signalling circuits

Info

Publication number
CA824219A
CA824219A CA824219A CA824219DA CA824219A CA 824219 A CA824219 A CA 824219A CA 824219 A CA824219 A CA 824219A CA 824219D A CA824219D A CA 824219DA CA 824219 A CA824219 A CA 824219A
Authority
CA
Canada
Prior art keywords
signalling circuits
supervisory signalling
supervisory
circuits
signalling
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
CA824219A
Inventor
Bereznak 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.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph Corp
Publication date
Application granted granted Critical
Publication of CA824219A publication Critical patent/CA824219A/en
Expired legal-status Critical Current

Links

CA824219A Supervisory signalling circuits Expired CA824219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA824219T

Publications (1)

Publication Number Publication Date
CA824219A true CA824219A (en) 1969-09-30

Family

ID=36301642

Family Applications (1)

Application Number Title Priority Date Filing Date
CA824219A Expired CA824219A (en) Supervisory signalling circuits

Country Status (1)

Country Link
CA (1) CA824219A (en)

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