Seong H. Yi

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Ventilation system for a kitchen
- Patent number 6,347,626
- Issue date Feb 19, 2002
- Seong-Hwan Yi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ventilation system
- Patent number 6,139,427
- Issue date Oct 31, 2000
- ECTA Co., Ltd.
- Seong-Hwan Yi
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Apparatus for ventilating rooms preferably large premises
- Patent number 5,370,578
- Issue date Dec 6, 1994
- Lim; Sang Su
- Seong H. Yi
- F24 - HEATING RANGES VENTILATING