목록 게시판 리스트 옵션 검색 Mobility management system and method for internet protocol based low power wireless network Inventor Hyo Hyun Choi, Sun Gi Kim, Tae Shik Shon, Jin Ho Kim, Choong Seon Hong No. US 8797944 B2 출원국가 USA 상태 등록 Year 2014 Date 2014.Aug. .05 -