Kai Chen

Follow

Person

Shenzhen, Guangdong, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Integrated overprint colorful seal with multiple printing surfaces
- Patent number 9,815,269
- Issue date Nov 14, 2017
- SHENZHEN WANXI TECHNOLOGY CO., LTD.
- Kai Chen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
INTEGRATED OVERPRINT COLORFUL SEAL WITH MULTIPLE PRINTING SURFACES
- Publication number 20170001429
- Publication date Jan 5, 2017
- SHENZHEN WANXI TECHNOLOGY CO., LTD.
- Kai Chen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS