| |||
| 注文中 | |||
|
en commande : 21 phrases in 7 subjects |
| Automatic control | 7 |
| Canada | 1 |
| Microsoft | 9 |
| Radio | 1 |
| Telegraphy | 1 |
| Transformers | 1 |
| Vacuum tubes | 1 |
| |||
| 注文中 | |||
|
en commande : 21 phrases in 7 subjects |
| Automatic control | 7 |
| Canada | 1 |
| Microsoft | 9 |
| Radio | 1 |
| Telegraphy | 1 |
| Transformers | 1 |
| Vacuum tubes | 1 |