Legier
| Transistor
| Legieren | |
| chem. | alear |
| Transistor | |
| antenn. | transitron; triodo de cristal |
| semicond. | transistor |
| |||
| alear | |||
|
Legier : 4 phrases in 3 subjects |
| Antennas and waveguides | 1 |
| Electronics | 2 |
| Metallurgy | 1 |