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经营范围
发明名称
DIRECTIONAL ARRAY OF MICROPHONES
摘要
申请公布号
KR1019850000659(B1)
申请公布日期
1985.05.07
申请号
KR1019800004815
申请日期
1980.12.17
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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