 |
| |||
| тип резервирования (oleg.vigodsky) | |||
| protection type: 23 phrases in 12 subjects |
| Aerohydrodynamics | 2 |
| Astronautics | 1 |
| Electricity | 1 |
| Electronics | 1 |
| Energy industry | 2 |
| General | 1 |
| Household appliances | 1 |
| Military | 2 |
| Nanotechnology | 3 |
| Nuclear physics | 4 |
| Technology | 3 |
| Telecommunications | 2 |