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发明名称
MICROPHONE APPARATUS
摘要
申请公布号
GB8325209(D0)
申请公布日期
1983.10.26
申请号
GB19830025209
申请日期
1983.09.21
申请人
SONY CORPORATION
发明人
分类号
H04R1/20;H04R1/34;H04R5/027;(IPC1-7):H04R1/20
主分类号
H04R1/20
代理机构
代理人
主权项
地址
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