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发明名称
SPEAKER DUCT DEVICE
摘要
申请公布号
KR920002919(Y1)
申请公布日期
1992.05.08
申请号
KR19900006699U
申请日期
1990.05.18
申请人
SAM SUNG ELECTRONICS CO., LTD.
发明人
YUN, SANG - RAK
分类号
H04R1/02;(IPC1-7):H04R1/02
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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