Kung-An Chiang

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning device for avoiding dissipation of polluted air due to smo...
- Patent number 6,039,776
- Issue date Mar 21, 2000
- Yung-Ho Liue
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES