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经营范围
发明名称
Magnetoelectrical Transducer
摘要
申请公布号
GB1195674(A)
申请公布日期
1970.06.17
申请号
GB19690001841
申请日期
1969.01.13
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
分类号
H04R23/00
主分类号
H04R23/00
代理机构
代理人
主权项
地址
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