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发明名称
Directional microphone
摘要
申请公布号
GB2218303(A)
申请公布日期
1989.11.08
申请号
GB19890005924
申请日期
1989.03.15
申请人
* PRIMO COMPANY LIMITED
发明人
SHIGEO * MORI
分类号
H04M1/03;H04M1/19;H04R1/08;H04R1/34;H04R1/38
主分类号
H04M1/03
代理机构
代理人
主权项
地址
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