FR553220A - Avertisseur-signaleur électrique - Google Patents
Avertisseur-signaleur électriqueInfo
- Publication number
- FR553220A FR553220A FR553220DA FR553220A FR 553220 A FR553220 A FR 553220A FR 553220D A FR553220D A FR 553220DA FR 553220 A FR553220 A FR 553220A
- Authority
- FR
- France
- Prior art keywords
- warning signal
- electrical warning
- electrical
- signal
- warning
- 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
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/04—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR553220T | 1922-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR553220A true FR553220A (fr) | 1923-05-15 |
Family
ID=8938077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR553220D Expired FR553220A (fr) | 1922-06-15 | 1922-06-15 | Avertisseur-signaleur électrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR553220A (fr) |
-
1922
- 1922-06-15 FR FR553220D patent/FR553220A/fr not_active Expired
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