David T. Pong

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Hong Kong, HK

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Patents Grantslast 30 patents

Information Patent Grant
Method for delivering rolled rod to a cooling bed
- Patent number 5,690,008
- Issue date Nov 25, 1997
- David Teng Pong
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
No-twist slit-rolling approach ("NTA") apparatus and method for man...
- Patent number 5,027,632
- Issue date Jul 2, 1991
- David T. Pong
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...