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Patents Grants
last 30 patents
Information
Patent Grant
Differential temperature push bending method and device for tube wi...
Patent number
11,185,904
Issue date
Nov 30, 2021
Nanchang Hangkong University (NCHU)
Xuefeng Xu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and former for necking and thickening tube end
Patent number
10,913,096
Issue date
Feb 9, 2021
Nanchang Hangkong University (NCHU)
Xuefeng Xu
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
DIFFERENTIAL TEMPERATURE PUSH BENDING METHOD AND DEVICE FOR TUBE WI...
Publication number
20190224736
Publication date
Jul 25, 2019
Nanchang Hangkong University (NCHU)
Xuefeng XU
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
METHOD AND FORMER FOR NECKING AND THICKENING TUBE END
Publication number
20190143386
Publication date
May 16, 2019
Nanchang Hangkong University (NCHU)
Xuefeng XU
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...