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公开(公告)号:KR2019900006782Y1
公开(公告)日:1990-07-28
申请号:KR2019860019223
申请日:1986-12-02
Applicant: 삼성전자주식회사
Inventor: 심우철
IPC: G06F1/16
Abstract: 내용 없음.
公开(公告)号:KR2019890005954U
公开(公告)日:1989-04-21
申请号:KR2019870014543
申请日:1987-08-29
IPC: H04R1/02