all-relay interlocking
| box
| all relay interlocking | |
| railw. sec.sys. | Relaisstellwerk |
| box | |
| gen. | Box; Briefkasten; Buchsbaum; Büchse; Dose; Gehäuse |
| |||
| Relaisstellwerk m | |||
|
all-relay interlocking : 4 phrases in 2 subjects |
| Communications | 1 |
| Transport | 3 |