Jianhua Yao

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Foshan City, CN

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Patents Applicationslast 30 patents

Information Patent Application
A processing apparatus for elliptical annular optical glass
- Publication number 20200086449
- Publication date Mar 19, 2020
- Jianhua Yao
- B24 - GRINDING POLISHING
Information Patent Application
protective glass cutting machine
- Publication number 20200079678
- Publication date Mar 12, 2020
- Jianhua Yao
- B26 - HAND CUTTING TOOLS CUTTING SEVERING