BE432570A - - Google Patents
Info
- Publication number
- BE432570A BE432570A BE432570DA BE432570A BE 432570 A BE432570 A BE 432570A BE 432570D A BE432570D A BE 432570DA BE 432570 A BE432570 A BE 432570A
- Authority
- BE
- Belgium
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
- H02H1/0076—Details of emergency protective circuit arrangements concerning transmission of signals by superposition on the watched current
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/546—Combination of signalling, telemetering, protection
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2059039A GB513409A (en) | 1938-02-09 | 1938-02-09 | Improvements in or relating to electrical signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE432570A true BE432570A (en) | 1900-01-01 |
Family
ID=10148430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE432570D BE432570A (en) | 1938-02-09 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2279697A (en) |
| BE (1) | BE432570A (en) |
| GB (1) | GB513409A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR908688A (en) * | 1942-02-20 | 1946-04-16 | Constr Telephoniques | High frequency traffic system on power transmission lines |
| US2515855A (en) * | 1947-12-11 | 1950-07-18 | Union Switch & Signal Co | Means for by-passing a fault of a line circuit and for telephoning to railway trains |
| US2634334A (en) * | 1948-02-20 | 1953-04-07 | Harry N Kalb | Carrier current communication system |
| US2568342A (en) * | 1949-09-15 | 1951-09-18 | Ralph D Collins | Signaling method and system |
| BE502150A (en) * | 1950-03-27 | 1900-01-01 |
-
0
- BE BE432570D patent/BE432570A/xx unknown
-
1938
- 1938-02-09 GB GB2059039A patent/GB513409A/en not_active Expired
-
1939
- 1939-02-06 US US25482639 patent/US2279697A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB513409A (en) | 1939-10-11 |
| US2279697A (en) | 1942-04-14 |