FR767480A - - Google Patents
Info
- Publication number
- FR767480A FR767480A FR767480DA FR767480A FR 767480 A FR767480 A FR 767480A FR 767480D A FR767480D A FR 767480DA FR 767480 A FR767480 A FR 767480A
- 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
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR767480A true FR767480A (en) | 1934-07-17 |
Family
ID=1551478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR767480D Expired FR767480A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR767480A (en) |
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0
- FR FR767480D patent/FR767480A/fr not_active Expired