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发明名称
UNION RING STRUCTURE OF MICROPHONE HEAD DEPARTMENT
摘要
申请公布号
KR920002921(Y1)
申请公布日期
1992.05.08
申请号
KR19900001929U
申请日期
1990.02.20
申请人
HAN, YUN - JEONG
发明人
HAN, YUN - JEONG
分类号
H04R1/08;(IPC1-7):H04R1/08
主分类号
H04R1/08
代理机构
代理人
主权项
地址
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