BEIJING ZBSD PATENT & TRADEMARK AGENT LTD.

Follow

Organization

Beijing, CN

Organizations

Please log in for detailed analytics

Patents Applicationslast 30 patents

Information Patent Application
SCRIBBLING SUBSTRATE
- Publication number 20090263623
- Publication date Oct 22, 2009
- BEIJING ZBSD PATENT & TRADEMARK AGENT LTD.
- Hsia-Yuen Chen
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES