Chaeho YOON

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for opening and closing entrance
- Patent number 9,556,644
- Issue date Jan 31, 2017
- Byungman Yoon
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR OPENING AND CLOSING ENTRANCE
- Publication number 20150007620
- Publication date Jan 8, 2015
- Byungman YOON
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES