Lung-En Cheng

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Tainan Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Sound mixing equipment
- Patent number 6,917,689
- Issue date Jul 12, 2005
- Hanpin Electron Co., Ltd.
- Lung-En Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Sound mixing equipment
- Publication number 20040022402
- Publication date Feb 5, 2004
- Lung-En Cheng
- H04 - ELECTRIC COMMUNICATION TECHNIQUE