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发明名称
TELEPHONE SIGNAL TRANSMISSION EQUIPMENT
摘要
申请公布号
JPS6214566(A)
申请公布日期
1987.01.23
申请号
JP19850152441
申请日期
1985.07.12
申请人
NEC CORP
发明人
YASUNAGA SATOSHI
分类号
H04M3/00;H04J3/12;H04J3/16;H04M1/253;H04M7/00;H04M11/06
主分类号
H04M3/00
代理机构
代理人
主权项
地址
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