Daoguang Cheng

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Changzhou, CN

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Patents Applicationslast 30 patents

Information Patent Application
Connecting Lock for Exhibit Framework Assembly
- Publication number 20080307617
- Publication date Dec 18, 2008
- Changzhou Lingtong Exhibition Products Co., Ltd
- Lianping Liu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...