Yuewen Zhai

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Patents Grantslast 30 patents

Information Patent Grant
Preparation method of large-scale die blank for vacuum isothermal f...
- Patent number 12,116,659
- Issue date Oct 15, 2024
- BEIJING RESEARCH INSTITUTE OF MEHCNAICAL & ELECTRICAL TECHNOLOGY CO. LTD.CAM
- Yuewen Zhai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION METHOD OF LARGE-SCALE DIE BLANK FOR VACUUM ISOTHERMAL F...
- Publication number 20240263290
- Publication date Aug 8, 2024
- BEIJING RESEARCH INSTITUTE OF MECHANICAL&ELECTRICAL TECHNOLOGY CO., LTD.CAM
- Yuewen Zhai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR