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发明名称
Directional microphone
摘要
申请公布号
AUPR141200(D0)
申请公布日期
2000.12.07
申请号
AU2000PR01412
申请日期
2000.11.13
申请人
SYMONS, I. R.
发明人
分类号
H04R1/40;H04R3/00;H04R25/00
主分类号
H04R1/40
代理机构
代理人
主权项
地址
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