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发明名称
ELECTRET CONDENSER MICROPHONE
摘要
申请公布号
US5097515(A)
申请公布日期
1992.03.17
申请号
US19890428535
申请日期
1989.10.30
申请人
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人
BABA, HIROYUKI
分类号
H04R19/01
主分类号
H04R19/01
代理机构
代理人
主权项
地址
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