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protector : 47 phrases in 14 subjects |
| Agriculture | 2 |
| Antennas and waveguides | 3 |
| Chemistry | 1 |
| Electric traction | 2 |
| Electronics | 9 |
| Environment | 3 |
| Forestry | 3 |
| General | 1 |
| Industry | 2 |
| Labor law | 2 |
| Lighting other than cinema | 3 |
| Metallurgy | 1 |
| Patents | 7 |
| Radiology | 8 |
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