Yu Liu Shang

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Die block assembly with clearance protection mechanism
- Patent number 6,513,411
- Issue date Feb 4, 2003
- Hon Hai Precision Ind. Co., Ltd.
- Yu Liu Shang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Die block assembly with clearance protection mechanism
- Publication number 20020073817
- Publication date Jun 20, 2002
- Yu Liu Shang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...