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发明名称
ELECTRO/ACOUSTIC CONVERTER HAVING BACK TERMINAL
摘要
申请公布号
KR20010112585(A)
申请公布日期
2001.12.20
申请号
KR1020010031930
申请日期
2001.06.08
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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