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发明名称
SPEAKER PHONE VOLUME CONTROL CIRCUIT
摘要
申请公布号
KR910001702(Y1)
申请公布日期
1991.03.18
申请号
KR19880008305U
申请日期
1988.05.31
申请人
SAM SUNG ELECTRONICS CO.,LTD.
发明人
PARK SUNG-KYU
分类号
H04M1/60;(IPC1-7):H04M1/60
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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