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公开(公告)号:KR2019900000294Y1
公开(公告)日:1990-01-30
申请号:KR2019860017229
申请日:1986-11-06
Applicant: 삼성전자주식회사
Inventor: 우재현
IPC: B26D5/20
Abstract: 내용 없음.
公开(公告)号:KR2019890008144Y1
公开(公告)日:1989-11-20
申请号:KR2019860019125
申请日:1986-12-01
IPC: B21D37/06