FR2142772A1 - - Google Patents
Info
- Publication number
- FR2142772A1 FR2142772A1 FR7123137A FR7123137A FR2142772A1 FR 2142772 A1 FR2142772 A1 FR 2142772A1 FR 7123137 A FR7123137 A FR 7123137A FR 7123137 A FR7123137 A FR 7123137A FR 2142772 A1 FR2142772 A1 FR 2142772A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7123137A FR2142772B1 (enExample) | 1971-06-24 | 1971-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7123137A FR2142772B1 (enExample) | 1971-06-24 | 1971-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2142772A1 true FR2142772A1 (enExample) | 1973-02-02 |
| FR2142772B1 FR2142772B1 (enExample) | 1973-06-29 |
Family
ID=9079272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7123137A Expired FR2142772B1 (enExample) | 1971-06-24 | 1971-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2142772B1 (enExample) |
-
1971
- 1971-06-24 FR FR7123137A patent/FR2142772B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2142772B1 (enExample) | 1973-06-29 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |