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发明名称
DIAPHRAGM
摘要
申请公布号
KR910005370(Y1)
申请公布日期
1991.07.22
申请号
KR19890011745U
申请日期
1989.08.08
申请人
YEH SANG-YOON
发明人
YEH SANG-YOON
分类号
H04R7/02;(IPC1-7):H04R7/02
主分类号
H04R7/02
代理机构
代理人
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地址
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