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经营范围
发明名称
TELEPHONE VOLTAGE SUPPLY CIRCUIT
摘要
申请公布号
KR900006419(Y1)
申请公布日期
1990.07.20
申请号
KR19870003976U
申请日期
1987.03.27
申请人
ORIENTAL PRECISION IND. CO.LTD.
发明人
PARK YOUNG-HWAN
分类号
H04M19/00;(IPC1-7):H04M19/00
主分类号
H04M19/00
代理机构
代理人
主权项
地址
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