Yi Yu

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Cixi, CN

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Patents Grantslast 30 patents

Information Patent Grant
Wall polisher for building decoration
- Patent number 10,449,650
- Issue date Oct 22, 2019
- Yi Yu
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Wall Polisher for Building Decoration
- Publication number 20190134769
- Publication date May 9, 2019
- Yi Yu
- B24 - GRINDING POLISHING
Information Patent Application
Automatic Matchmaking Device
- Publication number 20190135713
- Publication date May 9, 2019
- Yi Yu
- C06 - EXPLOSIVES MATCHES