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公开(公告)号:KR2019950004415U
公开(公告)日:1995-02-17
申请号:KR2019930013018
申请日:1993-07-13
Applicant: 박해준
Inventor: 박해준
IPC: G01F3/00
公开(公告)号:KR2019920019637U
公开(公告)日:1992-11-16
申请号:KR2019910004788
申请日:1991-04-09
IPC: C02F11/00