 |
| |||
| signal d'aiguille; signal de position d'aiguille | |||
|
points signal : 18 phrases in 4 subjects |
| Communications | 7 |
| Electronics | 9 |
| Rail transport | 1 |
| Telecommunications | 1 |
|
| |||
| signal d'aiguille; signal de position d'aiguille | |||
|
points signal : 18 phrases in 4 subjects |
| Communications | 7 |
| Electronics | 9 |
| Rail transport | 1 |
| Telecommunications | 1 |