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发明名称
SINGLE TRANSDUCER FULL DUPLEX TALKING CIRCUIT
摘要
申请公布号
EP2258100(A4)
申请公布日期
2013.01.02
申请号
EP20090724938
申请日期
2009.03.24
申请人
MATECH, INC.
发明人
MASUDA, MASAHISA;KITAZUMI, GONTARO
分类号
H04M1/00;H04M9/08
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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