History of changes
RIA News: Russia issued 74 patents for developments to combat coronavirus
| 04.12.2020 13:18:40 |
| 04.12.2020 13:17:40 |
| 06.11.2020 13:47:18 |
| 06.11.2020 13:08:31 |
| 06.11.2020 13:08:07 |
| 04.12.2020 13:18:40 |
| 04.12.2020 13:17:40 |
| 06.11.2020 13:47:18 |
| 06.11.2020 13:08:31 |
| 06.11.2020 13:08:07 |