FR2205030A5 - - Google Patents
Info
- Publication number
- FR2205030A5 FR2205030A5 FR7237975A FR7237975A FR2205030A5 FR 2205030 A5 FR2205030 A5 FR 2205030A5 FR 7237975 A FR7237975 A FR 7237975A FR 7237975 A FR7237975 A FR 7237975A FR 2205030 A5 FR2205030 A5 FR 2205030A5
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/18—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train
- B61L3/20—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train employing different frequencies or coded pulse groups, e.g. using currents carried by traction current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7237975A FR2205030A5 (fr) | 1972-10-26 | 1972-10-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7237975A FR2205030A5 (fr) | 1972-10-26 | 1972-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2205030A5 true FR2205030A5 (fr) | 1974-05-24 |
Family
ID=9106248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7237975A Expired FR2205030A5 (fr) | 1972-10-26 | 1972-10-26 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2205030A5 (fr) |
-
1972
- 1972-10-26 FR FR7237975A patent/FR2205030A5/fr not_active Expired
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |