Dong Seok Chung

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Daegu, KR

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Patents Grantslast 30 patents

Information Patent Grant
Valve sealant fitting
- Patent number 8,205,639
- Issue date Jun 26, 2012
- Do A Kim
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Valve Sealant Fitting
- Publication number 20100163775
- Publication date Jul 1, 2010
- Do A Kim
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...