History of changes
WIPO: Russia among Top 10 in the Number of Patent Filings Related to Vision Assistive Technologies (1998 - 2019)
| 05.04.2021 12:28:33 |
| 05.04.2021 11:33:32 |
| 31.03.2021 11:25:47 |
| 30.03.2021 18:03:58 |
| 30.03.2021 17:59:03 |
| 30.03.2021 17:58:13 |
| 30.03.2021 17:35:06 |
| 30.03.2021 17:34:18 |
| 30.03.2021 17:32:44 |