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CNIPA Patent Data Sub-class A61

Posted: Wed Apr 14, 2021 6:52 am
by tanky18
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

Re: CNIPA Patent Data Sub-class A61

Posted: Thu Aug 19, 2021 10:30 am
by sonaliverma
It will help you understand what patents are and get started with your patent.