Bill Hongwen Lyu

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Qingdao, CN

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Patents Applicationslast 30 patents

Information Patent Application
One Safety Control Device for Petrol Post Hole Digger
- Publication number 20160319752
- Publication date Nov 3, 2016
- JUNIFENG INTERNATIONAL CO., LIMITED
- Bill Hongwen Lyu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS