FR742934A - - Google Patents
Info
- Publication number
- FR742934A FR742934A FR742934DA FR742934A FR 742934 A FR742934 A FR 742934A FR 742934D A FR742934D A FR 742934DA FR 742934 A FR742934 A FR 742934A
- 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
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/02—Guards or obstacles for preventing access to the route
- B61L29/023—Special gates
- B61L29/026—Preventing access by means of obstacles raising across the route
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR742934A true FR742934A (en) | 1933-03-18 |
Family
ID=1547263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR742934D Expired FR742934A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR742934A (en) |
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0
- FR FR742934D patent/FR742934A/fr not_active Expired