| |||
| signalling system | |||
|
Signalisierungssystem : 4 phrases in 3 subjects |
| Communications | 1 |
| Electronics | 2 |
| Information technology | 1 |
| |||
| signalling system | |||
|
Signalisierungssystem : 4 phrases in 3 subjects |
| Communications | 1 |
| Electronics | 2 |
| Information technology | 1 |