FR618279A - - Google Patents
Info
- Publication number
- FR618279A FR618279A FR618279DA FR618279A FR 618279 A FR618279 A FR 618279A FR 618279D A FR618279D A FR 618279DA FR 618279 A FR618279 A FR 618279A
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR618279A true FR618279A (xx) | 1927-03-07 |
Family
ID=1541106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR618279D Expired FR618279A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR618279A (xx) |
-
0
- FR FR618279D patent/FR618279A/fr not_active Expired