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Jae-Jun Lee
SEOUL, KR
1. 20090257315 POSITION TRACING SIGNAL GENERATOR UNIT AND INPUT SYSTEM HAVING THE SAME 10-15-20092. 20090065567 APPARATUS AND METHOD FOR PROVIDING CONTENTS BY USING MACHINE-READABLE CODE 03-12-2009
3. 20090065566 APPARATUS AND METHOD FOR PROVIDING CONTENTS BY USING MACHINE-READABLE CODE 03-12-2009
4. 20080247363 METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN 10-09-2008
5. 20080245870 METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN 10-09-2008