JPS399967B1 - - Google Patents
Info
- Publication number
- JPS399967B1 JPS399967B1 JP2443861A JP2443861A JPS399967B1 JP S399967 B1 JPS399967 B1 JP S399967B1 JP 2443861 A JP2443861 A JP 2443861A JP 2443861 A JP2443861 A JP 2443861A JP S399967 B1 JPS399967 B1 JP S399967B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US42684A US3159721A (en) | 1960-07-13 | 1960-07-13 | Outgoing trunk identification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS399967B1 true JPS399967B1 (enExample) | 1964-06-09 |
Family
ID=21923225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2443861A Pending JPS399967B1 (enExample) | 1960-07-13 | 1961-07-13 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3159721A (enExample) |
| JP (1) | JPS399967B1 (enExample) |
| BE (1) | BE605996A (enExample) |
| DE (1) | DE1242717B (enExample) |
| GB (1) | GB979526A (enExample) |
| SE (1) | SE310717B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299220A (en) * | 1963-05-08 | 1967-01-17 | Automatic Elect Lab | Programmed diagnostic equipment for a communication switching system |
| US3808380A (en) * | 1973-01-08 | 1974-04-30 | Western Electric Co | Identifier arrangement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2868884A (en) * | 1952-05-06 | 1959-01-13 | Bell Telephone Labor Inc | Toll switching telephone system |
| BE527157A (enExample) * | 1953-03-12 | |||
| NL193626A (enExample) * | 1953-12-30 | |||
| US2820099A (en) * | 1954-09-14 | 1958-01-14 | Bell Telephone Labor Inc | Trouble recording on time-out circuit for automatic telephone |
| BE551031A (enExample) * | 1955-07-05 | |||
| DE1015862B (de) * | 1956-08-17 | 1957-09-19 | Standard Elektrik Ag | Kennzeichnungseinrichtung fuer Fernmelde-, insbesondere Fernsprechanlagen |
-
1960
- 1960-07-13 US US42684A patent/US3159721A/en not_active Expired - Lifetime
-
1961
- 1961-07-11 BE BE605996A patent/BE605996A/fr unknown
- 1961-07-12 DE DEW30336A patent/DE1242717B/de active Pending
- 1961-07-12 GB GB25222/61A patent/GB979526A/en not_active Expired
- 1961-07-13 JP JP2443861A patent/JPS399967B1/ja active Pending
- 1961-07-13 SE SE7296/61A patent/SE310717B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE310717B (enExample) | 1969-05-12 |
| US3159721A (en) | 1964-12-01 |
| BE605996A (fr) | 1961-11-03 |
| DE1242717B (de) | 1967-06-22 |
| GB979526A (en) | 1965-01-06 |