| |||
| radiogoniométrie f | |||
| relèvement par T. S. F. | |||
| |||
| radiogoniométrie f | |||
|
radio direction finding : 5 phrases in 3 subjects |
| Aviation | 1 |
| Commerce | 1 |
| Communications | 3 |
| |||
| radiogoniométrie f | |||
| relèvement par T. S. F. | |||
| |||
| radiogoniométrie f | |||
|
radio direction finding : 5 phrases in 3 subjects |
| Aviation | 1 |
| Commerce | 1 |
| Communications | 3 |