 |
| |||
| huvudkrets | |||
|
switching circuit : 30 phrases in 7 subjects |
| Communications | 3 |
| Earth sciences | 2 |
| Electronics | 16 |
| Information technology | 5 |
| Patents | 1 |
| Telecommunications | 1 |
| Telegraphy | 2 |
|
| |||
| huvudkrets | |||
|
switching circuit : 30 phrases in 7 subjects |
| Communications | 3 |
| Earth sciences | 2 |
| Electronics | 16 |
| Information technology | 5 |
| Patents | 1 |
| Telecommunications | 1 |
| Telegraphy | 2 |