FR955357A - - Google Patents
Info
- Publication number
- FR955357A FR955357A FR955357DA FR955357A FR 955357 A FR955357 A FR 955357A FR 955357D A FR955357D A FR 955357DA FR 955357 A FR955357 A FR 955357A
- 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
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
- B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
- B61L23/16—Track circuits specially adapted for section blocking
- B61L23/163—Track circuits specially adapted for section blocking using direct current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR955357A true FR955357A (lt) | 1950-01-14 |
Family
ID=1558112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR955357D Expired FR955357A (lt) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR955357A (lt) |
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0
- FR FR955357D patent/FR955357A/fr not_active Expired