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发明名称
TRYKGRADIENT MIKROFON
摘要
申请公布号
DK340686(D0)
申请公布日期
1986.07.17
申请号
DK19860003406
申请日期
1986.07.17
申请人
BRUEEL & KJAER A/S
发明人
FREDERIKSEN ERLING
分类号
H04R1/38;H04R19/01;(IPC1-7):H04R/
主分类号
H04R1/38
代理机构
代理人
主权项
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