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发明名称
CIRCUIT ARRANGEMENT FOR DUPLEX TRANSMISSION OF SPEECH SIGNAL
摘要
申请公布号
CZ9203180(A3)
申请公布日期
1994.07.13
申请号
CS19920003180
申请日期
1992.10.21
申请人
HINZE JAN
发明人
HINZE JAN
分类号
H04M7/10;H04B3/56;(IPC1-7):H04M7/10
主分类号
H04M7/10
代理机构
代理人
主权项
地址
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