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Patents Grantslast 30 patents

Information Patent Grant
Temperature sensitive controlling device
- Patent number 5,263,644
- Issue date Nov 23, 1993
- Hsing Chen
- G05 - CONTROLLING REGULATING
Information Patent Grant
Apparatus for extinguishing a lighted cigarette
- Patent number 5,181,528
- Issue date Jan 26, 1993
- Industrial Technology Research Institute
- Hsing Chen
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES