FR742405A - - Google Patents
Info
- Publication number
- FR742405A FR742405A FR742405DA FR742405A FR 742405 A FR742405 A FR 742405A FR 742405D A FR742405D A FR 742405DA FR 742405 A FR742405 A FR 742405A
- 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
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/182—Use of current of indifferent sort or a combination of different current types
- B61L1/183—Use of means on the vehicle for improving short circuit, e.g. in vehicles with rubber bandages
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742405A true FR742405A (fi) | 1933-03-07 |
Family
ID=1546810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742405D Expired FR742405A (fi) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR742405A (fi) |
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0
- FR FR742405D patent/FR742405A/fr not_active Expired