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经营范围
发明名称
AN EARPHONE
摘要
申请公布号
GB1301014(A)
申请公布日期
1972.12.29
申请号
GB19700006951
申请日期
1970.02.13
申请人
AKG AKUSTISCHE U. KINO-GERATE GESELLSCHAFT M.B.H.
发明人
分类号
H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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