Lak Hwan Choi

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Changwon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Elevator car call register apparatus and method thereof
- Patent number 5,975,247
- Issue date Nov 2, 1999
- LG Industrial Systems Co., Ltd.
- Lak Hwan Choi
- B66 - HOISTING LIFTING HAULING