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经营范围
发明名称
AN ELECTROACOUSTIC COMMUNICATIONS UNIT
摘要
申请公布号
KR20010099673(A)
申请公布日期
2001.11.09
申请号
KR1020017004336
申请日期
2001.04.04
申请人
发明人
分类号
H04R1/00
主分类号
H04R1/00
代理机构
代理人
主权项
地址
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