Hi All,
I am seeking advice on retrieving the CNIPA patent data sub-class A61 from 2000-2020 for a study. Anyone with experience to provide the guidance?
thank in advance
tanky18
Search found 1 match
- Wed Apr 14, 2021 6:52 am
- Forum: Asian Patent Information Services
- Topic: CNIPA Patent Data Sub-class A61
- Replies: 3
- Views: 26576