FR578497A - Signal - Google Patents
SignalInfo
- Publication number
- FR578497A FR578497A FR578497DA FR578497A FR 578497 A FR578497 A FR 578497A FR 578497D A FR578497D A FR 578497DA FR 578497 A FR578497 A FR 578497A
- Authority
- FR
- France
- Prior art keywords
- signal
- Prior art date
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR578497T | 1924-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR578497A true FR578497A (fr) | 1924-09-26 |
Family
ID=8955473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR578497D Expired FR578497A (fr) | 1924-03-12 | 1924-03-12 | Signal |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR578497A (fr) |
-
1924
- 1924-03-12 FR FR578497D patent/FR578497A/fr not_active Expired
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