FR684367A - Automatic locking system - Google Patents
Automatic locking systemInfo
- Publication number
- FR684367A FR684367A FR684367DA FR684367A FR 684367 A FR684367 A FR 684367A FR 684367D A FR684367D A FR 684367DA FR 684367 A FR684367 A FR 684367A
- Authority
- FR
- France
- Prior art keywords
- locking system
- automatic locking
- automatic
- locking
- 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
- B61L13/00—Operation of signals from the vehicle or by the passage of the vehicle
- B61L13/04—Operation of signals from the vehicle or by the passage of the vehicle using electrical or magnetic interaction between vehicle and track, e.g. by conductor circuits using special means or special conductors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES684367X | 1928-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR684367A true FR684367A (en) | 1930-06-25 |
Family
ID=8246090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR684367D Expired FR684367A (en) | 1928-11-20 | 1929-11-05 | Automatic locking system |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR684367A (en) |
-
1929
- 1929-11-05 FR FR684367D patent/FR684367A/en not_active Expired
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