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Zhicong Yao
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Rochester Hills, MI, US
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last 30 patents
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Patent Grant
Sheet metal forming die assembly with textured die surfaces
Patent number
6,745,609
Issue date
Jun 8, 2004
DaimlerChrysler Corporation
Mark D Garnett
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
Sheet metal forming die assembly with textured die surfaces
Publication number
20040083786
Publication date
May 6, 2004
Mark D. Garnett
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...