Common General Knowledge for Patents in China ( www.patentchn.com )
Common general knowledge for patents in China should have the property of being generally known, and be understood as a well-known textbook or reference book.
![](https://kbin.cafe/media/cache/resolve/entry_thumb/b5/a6/b5a6798b0b5ae95a9bcda791a6f63c46d8d43c3a1fd921245efd5cc6526b2860.jpg)
Metis IP - Leading IP service provider in China
https://patentchn.com/
This profile is from a federated server and may be incomplete. View on remote instance
Common general knowledge for patents in China should have the property of being generally known, and be understood as a well-known textbook or reference book.