 |
| |||
| post, telegraph and telephone | |||
| почта, телеграф, телефон: 3 phrases in 3 subjects |
| High frequency electronics | 1 |
| Scientific | 1 |
| Technology | 1 |
|
| |||
| post, telegraph and telephone | |||
| почта, телеграф, телефон: 3 phrases in 3 subjects |
| High frequency electronics | 1 |
| Scientific | 1 |
| Technology | 1 |