AU3318371A - Electronic circuit arrangement for monitoring instruments of electric communication engineering - Google Patents
Electronic circuit arrangement for monitoring instruments of electric communication engineeringInfo
- Publication number
- AU3318371A AU3318371A AU33183/71A AU3318371A AU3318371A AU 3318371 A AU3318371 A AU 3318371A AU 33183/71 A AU33183/71 A AU 33183/71A AU 3318371 A AU3318371 A AU 3318371A AU 3318371 A AU3318371 A AU 3318371A
- Authority
- AU
- Australia
- Prior art keywords
- electronic circuit
- circuit arrangement
- electric communication
- communication engineering
- monitoring instruments
- 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
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/181—Prevention or correction of operating errors due to failing power supply
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702046945 DE2046945C (en) | 1970-09-23 | Electronic switching device | |
DEDE82046 | 1970-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3318371A true AU3318371A (en) | 1973-03-15 |
AU467455B2 AU467455B2 (en) | 1975-12-04 |
Family
ID=5783212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU33183/71A Expired AU467455B2 (en) | 1970-09-23 | 1971-09-07 | Electronic circuit arrangement for monitoring instruments of electric communication engineering |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS477076A (en) |
AU (1) | AU467455B2 (en) |
IT (1) | IT938789B (en) |
NL (1) | NL170565C (en) |
SE (1) | SE378958B (en) |
-
1971
- 1971-09-07 AU AU33183/71A patent/AU467455B2/en not_active Expired
- 1971-09-20 NL NLAANVRAGE7112902,A patent/NL170565C/en not_active IP Right Cessation
- 1971-09-21 JP JP7374771A patent/JPS477076A/ja active Pending
- 1971-09-22 SE SE7111977A patent/SE378958B/xx unknown
- 1971-09-22 IT IT28906/71A patent/IT938789B/en active
Also Published As
Publication number | Publication date |
---|---|
DE2046945B1 (en) | 1972-06-08 |
JPS477076A (en) | 1972-04-18 |
SE378958B (en) | 1975-09-15 |
IT938789B (en) | 1973-02-10 |
AU467455B2 (en) | 1975-12-04 |
NL170565C (en) | 1982-11-16 |
NL170565B (en) | 1982-06-16 |
NL7112902A (en) | 1972-03-27 |
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