Membership
Tour
Register
Log in
Changgong Zhang
Follow
Person
Nanling Changchun, CN
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Technology and equipment of the stressed skin sheet covering for la...
Patent number
4,908,490
Issue date
Mar 13, 1990
Jilin University of Technology
Xicheng Jiang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR