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公开(公告)号:KR3000064160000S
公开(公告)日:1970-06-16
申请号:KR3019690001184
申请日:1969-04-09
Applicant: 김형근 , 손흥귀
Designer: 김형근 , 손흥귀
公开(公告)号:KR200006656Y1
公开(公告)日:1970-05-01
申请号:KR2019690001196
申请日:1969-03-21
Inventor: 김형근 , 손흥귀
IPC: B21F45/24