FR550193A - - Google Patents
Info
- Publication number
- FR550193A FR550193A FR550193DA FR550193A FR 550193 A FR550193 A FR 550193A FR 550193D A FR550193D A FR 550193DA FR 550193 A FR550193 A FR 550193A
- 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
- B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
- B61L13/02—Operation of signals from the vehicle or by the passage of the vehicle using mechanical interaction between vehicle and track
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR550193A true FR550193A (online.php) | 1923-02-28 |
Family
ID=1538314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR550193D Expired FR550193A (online.php) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR550193A (online.php) |
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0
- FR FR550193D patent/FR550193A/fr not_active Expired