Chan Bok Lee

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Cheongju-city, Chungcheongbuk-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Safety unit of hinge for folding ladder
- Patent number 7,007,344
- Issue date Mar 7, 2006
- Chan Bok Lee
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES