FR2172312B3 - - Google Patents
Info
- Publication number
- FR2172312B3 FR2172312B3 FR7305418A FR7305418A FR2172312B3 FR 2172312 B3 FR2172312 B3 FR 2172312B3 FR 7305418 A FR7305418 A FR 7305418A FR 7305418 A FR7305418 A FR 7305418A FR 2172312 B3 FR2172312 B3 FR 2172312B3
- 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
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
- B61L1/181—Details
- B61L1/187—Use of alternating current
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Escalators And Moving Walkways (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA720969A ZA72969B (en) | 1972-02-15 | 1972-02-15 | Improvements in electrical protective circuits |
| ZA727329 | 1972-10-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2172312A1 FR2172312A1 (enrdf_load_stackoverflow) | 1973-09-28 |
| FR2172312B3 true FR2172312B3 (enrdf_load_stackoverflow) | 1976-02-13 |
Family
ID=27131046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7305418A Expired FR2172312B3 (enrdf_load_stackoverflow) | 1972-02-15 | 1973-02-15 |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA973630A (enrdf_load_stackoverflow) |
| DE (1) | DE2307475A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2172312B3 (enrdf_load_stackoverflow) |
| GB (1) | GB1404878A (enrdf_load_stackoverflow) |
| IT (1) | IT977355B (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2598374B1 (fr) * | 1986-05-06 | 1988-08-26 | Signaux Entr Electriques | Circuit de voie perfectionne pour appareil de voie de chemin de fer |
| DE19819167C2 (de) * | 1998-04-24 | 2001-03-22 | Siemens Ag | Einrichtung zum Behandeln der Fahrten von Bahnfahrzeugen zu AusweichanschluĂźstellen |
-
1973
- 1973-02-12 CA CA163,500A patent/CA973630A/en not_active Expired
- 1973-02-14 GB GB734473A patent/GB1404878A/en not_active Expired
- 1973-02-15 DE DE19732307475 patent/DE2307475A1/de active Pending
- 1973-02-15 IT IT7348268A patent/IT977355B/it active
- 1973-02-15 FR FR7305418A patent/FR2172312B3/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2307475A1 (de) | 1973-08-23 |
| GB1404878A (en) | 1975-09-10 |
| AU5211473A (en) | 1974-08-15 |
| FR2172312A1 (enrdf_load_stackoverflow) | 1973-09-28 |
| CA973630A (en) | 1975-08-26 |
| IT977355B (it) | 1974-09-10 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |