filamento : 109 phrases in 14 subjects |
Agriculture | 2 |
Chemistry | 4 |
Earth sciences | 3 |
Electronics | 23 |
Forestry | 1 |
General | 3 |
Health care | 2 |
Industry | 38 |
Lighting other than cinema | 12 |
Natural sciences | 3 |
Patents | 2 |
Technology | 13 |
Transport | 1 |
Vacuum tubes | 2 |