FR777469A - - Google Patents
Info
- Publication number
- FR777469A FR777469A FR777469DA FR777469A FR 777469 A FR777469 A FR 777469A FR 777469D A FR777469D A FR 777469DA FR 777469 A FR777469 A FR 777469A
- 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 |
|---|---|
| FR777469A true FR777469A (xx) | 1935-02-20 |
Family
ID=1552216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR777469D Expired FR777469A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR777469A (xx) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892980A (en) * | 1988-08-03 | 1990-01-09 | J. N. Fauver Company | Dual contacts on voltage rail |
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0
- FR FR777469D patent/FR777469A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892980A (en) * | 1988-08-03 | 1990-01-09 | J. N. Fauver Company | Dual contacts on voltage rail |