Sung Gi Choe

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Pyongyang, KP

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Patents Grantslast 30 patents

Information Patent Grant
Die assembly and a method of making it
- Patent number 8,176,765
- Issue date May 15, 2012
- Sung Gi Choe
- Sung Gi Choe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
DIE ASSEMBLY AND A METHOD OF MAKING IT
- Publication number 20090314050
- Publication date Dec 24, 2009
- Sung Gi Choe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...