FR546348A - - Google Patents
Info
- Publication number
- FR546348A FR546348A FR546348DA FR546348A FR 546348 A FR546348 A FR 546348A FR 546348D A FR546348D A FR 546348DA FR 546348 A FR546348 A FR 546348A
- 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
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/14—Form signals, e.g. semaphore arms
- B61L5/16—Local operating mechanisms for form signals
- B61L5/161—Local operating mechanisms for form signals using electromotive driving means
- B61L5/163—Driving mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR546348A true FR546348A (en) | 1922-11-07 |
Family
ID=1537915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR546348D Expired FR546348A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR546348A (en) |
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0
- FR FR546348D patent/FR546348A/fr not_active Expired