Yongyao Yao

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Ningbo, CN

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Patents Applicationslast 30 patents

Information Patent Application
Emergently Openable Safe Door
- Publication number 20120060726
- Publication date Mar 15, 2012
- NINGBO YONGFA GROUP CO., LTD.,
- Yongyao Yao
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES