CA773186A - Busy verification circuit for private branch exchanges - Google Patents

Busy verification circuit for private branch exchanges

Info

Publication number
CA773186A
CA773186A CA773186A CA773186DA CA773186A CA 773186 A CA773186 A CA 773186A CA 773186 A CA773186 A CA 773186A CA 773186D A CA773186D A CA 773186DA CA 773186 A CA773186 A CA 773186A
Authority
CA
Canada
Prior art keywords
private branch
verification circuit
branch exchanges
busy verification
busy
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
CA773186A
Inventor
A. Michalopoulos Gust
E. Thelemaque Louis
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
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA773186A publication Critical patent/CA773186A/en
Expired legal-status Critical Current

Links

CA773186A Busy verification circuit for private branch exchanges Expired CA773186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA773186T

Publications (1)

Publication Number Publication Date
CA773186A true CA773186A (en) 1967-12-05

Family

ID=36220467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA773186A Expired CA773186A (en) Busy verification circuit for private branch exchanges

Country Status (1)

Country Link
CA (1) CA773186A (en)

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