TSUNG-CHENG LAI

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Luchu Hsiang, TW

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Patents Grantslast 30 patents

Information Patent Grant
Self-drilling screw and fabricating method for the same
- Patent number 8,348,574
- Issue date Jan 8, 2013
- Tsung-Cheng Lai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
SELF-DRILLING SCREW AND FABRICATING METHOD FOR THE SAME
- Publication number 20110280684
- Publication date Nov 17, 2011
- TSUNG-CHENG LAI
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...