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经营范围
发明名称
MICROPHONE DEVICE
摘要
申请公布号
JPH01141500(A)
申请公布日期
1989.06.02
申请号
JP19870300804
申请日期
1987.11.27
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
HIZUKA SADAO
分类号
H04R7/02;H04R23/00
主分类号
H04R7/02
代理机构
代理人
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地址
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