Hyung Kyou Ryu

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Pyeongtaek-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
Non-directional smoke control damper having chain gear type blade a...
- Patent number 9,452,304
- Issue date Sep 27, 2016
- Daelim Industrial Co., Ltd.
- Hyung Kyou Ryu
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
NON-DIRECTIONAL SMOKE CONTROL DAMPER HAVING CHAIN GEAR TYPE BLADE A...
- Publication number 20140065941
- Publication date Mar 6, 2014
- DAELIM INDUSTRIAL CO., LTD.
- Hyung Kyou Ryu
- F24 - HEATING RANGES VENTILATING