Dong-Won Shin

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Kyeonggi-do, 462-150, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling fire and smoke
- Patent number 6,161,623
- Issue date Dec 19, 2000
- Dong-Won Shin
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS