Jingjin SHEN

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Metal workpiece indentation marking device
- Patent number 11,364,531
- Issue date Jun 21, 2022
- NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
- Fengyu Xu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Integrated molding device suitable for bending and hemming of flat...
- Patent number 11,014,136
- Issue date May 25, 2021
- Nanjing University Of Posts And Telecommunications
- Fengyu Xu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Metal Workpiece Indentation Marking Device
- Publication number 20210205870
- Publication date Jul 8, 2021
- NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS
- Fengyu XU
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INTEGRATED MOLDING DEVICE SUITABLE FOR BENDING AND HEMMING OF FLAT...
- Publication number 20200360979
- Publication date Nov 19, 2020
- Nanjing University Of Posts And Telecommunications
- Fengyu XU
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...