FR555944A - - Google Patents
Info
- Publication number
- FR555944A FR555944A FR555944DA FR555944A FR 555944 A FR555944 A FR 555944A FR 555944D A FR555944D A FR 555944DA FR 555944 A FR555944 A FR 555944A
- 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
- B61L19/00—Arrangements for interlocking between points and signals by means of a single interlocking device, e.g. central control
- B61L19/06—Interlocking devices having electrical operation
- B61L19/14—Interlocking devices having electrical operation with electrical locks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR555944A true FR555944A (pt) | 1923-07-09 |
Family
ID=1538676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR555944D Expired FR555944A (pt) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR555944A (pt) |
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0
- FR FR555944D patent/FR555944A/fr not_active Expired