FR499620A - - Google Patents
Info
- Publication number
- FR499620A FR499620A FR499620DA FR499620A FR 499620 A FR499620 A FR 499620A FR 499620D A FR499620D A FR 499620DA FR 499620 A FR499620 A FR 499620A
- 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
- B61L3/185—Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train using separate conductors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR499620A true FR499620A (xx) | 1920-02-17 |
Family
ID=1534634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR499620D Expired FR499620A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR499620A (xx) |
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0
- FR FR499620D patent/FR499620A/fr not_active Expired