Quing Chang

Follow

Person

Zhuhai, CN

People

Patents Applicationslast 30 patents

Information Patent Application
SMART INTERLOCK SYSTEM AND WORKING METHOD THEREOF
- Publication number 20120206235
- Publication date Aug 16, 2012
- ZHUHAI UNITECH POWER TECHNOLOGY CO., LTD.
- Shuqiang Jin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES