FR743169A - - Google Patents
Info
- Publication number
- FR743169A FR743169A FR743169DA FR743169A FR 743169 A FR743169 A FR 743169A FR 743169D A FR743169D A FR 743169DA FR 743169 A FR743169 A FR 743169A
- 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
- B61L17/00—Switching systems for classification yards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR743169A true FR743169A (tr) | 1933-03-25 |
Family
ID=1547465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR743169D Expired FR743169A (tr) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR743169A (tr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2898452A (en) * | 1954-12-13 | 1959-08-04 | Roland J Berti | Switching systems and apparatus therefor |
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0
- FR FR743169D patent/FR743169A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2898452A (en) * | 1954-12-13 | 1959-08-04 | Roland J Berti | Switching systems and apparatus therefor |