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Seong-Sik Cheon
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Seoul, KR
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last 30 patents
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Patent Grant
Method for producing hybrid driveshaft
Patent number
6,336,986
Issue date
Jan 8, 2002
Korea Advanced Institute Science Technology
Dai Gil Lee
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Method for fabricating a spindle or roller employing a composite ma...
Patent number
6,126,770
Issue date
Oct 3, 2000
Korea Advanced Institute of Science and Technology
Dai-Gil Lee
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL