FR2270737B1 - - Google Patents
Info
- Publication number
- FR2270737B1 FR2270737B1 FR7416240A FR7416240A FR2270737B1 FR 2270737 B1 FR2270737 B1 FR 2270737B1 FR 7416240 A FR7416240 A FR 7416240A FR 7416240 A FR7416240 A FR 7416240A FR 2270737 B1 FR2270737 B1 FR 2270737B1
- Authority
- FR
- France
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7416240A FR2270737A1 (en) | 1974-05-10 | 1974-05-10 | Telephone exchange signal level survey system - uses selector of distributor to monitor selected points at regular intervals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7416240A FR2270737A1 (en) | 1974-05-10 | 1974-05-10 | Telephone exchange signal level survey system - uses selector of distributor to monitor selected points at regular intervals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2270737A1 FR2270737A1 (en) | 1975-12-05 |
| FR2270737B1 true FR2270737B1 (https=) | 1978-10-27 |
Family
ID=9138684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7416240A Granted FR2270737A1 (en) | 1974-05-10 | 1974-05-10 | Telephone exchange signal level survey system - uses selector of distributor to monitor selected points at regular intervals |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2270737A1 (https=) |
-
1974
- 1974-05-10 FR FR7416240A patent/FR2270737A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2270737A1 (en) | 1975-12-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |