 |
| |||
| أحادي اللون | |||
| monocromatico: 8 phrases in 5 subjects |
| Antennas and waveguides | 1 |
| Lighting other than cinema | 3 |
| Microsoft | 1 |
| Radio | 1 |
| Vacuum tubes | 2 |
|
| |||
| أحادي اللون | |||
| monocromatico: 8 phrases in 5 subjects |
| Antennas and waveguides | 1 |
| Lighting other than cinema | 3 |
| Microsoft | 1 |
| Radio | 1 |
| Vacuum tubes | 2 |