FR767642A - - Google Patents
Info
- Publication number
- FR767642A FR767642A FR767642DA FR767642A FR 767642 A FR767642 A FR 767642A FR 767642D A FR767642D A FR 767642DA FR 767642 A FR767642 A FR 767642A
- 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
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR767642A true FR767642A (de) | 1934-07-20 |
Family
ID=1551609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR767642D Expired FR767642A (de) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR767642A (de) |
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0
- FR FR767642D patent/FR767642A/fr not_active Expired