Ji NING

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Patents Applicationslast 30 patents

Information Patent Application
Waste Gas Processing Device, Vacuum Coating System, and Operation M...
- Publication number 20190388799
- Publication date Dec 26, 2019
- Dongtai Hi-Tech Equipment Technology Co., Ltd
- Ji NING
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Waste Gas Processing Device, Vacuum Coating System, and Operation M...
- Publication number 20190388837
- Publication date Dec 26, 2019
- Dongtai Hi-Tech Equipment Technology Co., Ltd
- Ji NING
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...