AU287190B2 - Automatic monitoring circuit for step-by-step telephone systems - Google Patents

Automatic monitoring circuit for step-by-step telephone systems

Info

Publication number
AU287190B2
AU287190B2 AU51795/64A AU5179564A AU287190B2 AU 287190 B2 AU287190 B2 AU 287190B2 AU 51795/64 A AU51795/64 A AU 51795/64A AU 5179564 A AU5179564 A AU 5179564A AU 287190 B2 AU287190 B2 AU 287190B2
Authority
AU
Australia
Prior art keywords
monitoring circuit
automatic monitoring
telephone systems
systems
automatic
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
AU51795/64A
Other versions
AU5179564A (en
Inventor
George Henschke Betley
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
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of AU287190B2 publication Critical patent/AU287190B2/en
Publication of AU5179564A publication Critical patent/AU5179564A/en
Expired legal-status Critical Current

Links

AU51795/64A 1964-11-17 Automatic monitoring circuit for step-by-step telephone systems Expired AU287190B2 (en)

Publications (2)

Publication Number Publication Date
AU287190B2 true AU287190B2 (en) 1966-05-19
AU5179564A AU5179564A (en) 1966-05-19

Family

ID=

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