Ching Chung Lai

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Metal strips straightening machine
- Patent number 9,757,781
- Issue date Sep 12, 2017
- Ching Chung Lai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Metal Strips Straightening Machine
- Publication number 20160311004
- Publication date Oct 27, 2016
- Ching Chung Lai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...