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发明名称
DIAL SIGNAL TRANSMISSION METHOD FOR TELEPHONE SET
摘要
申请公布号
JPH0568076(A)
申请公布日期
1993.03.19
申请号
JP19910229308
申请日期
1991.09.10
申请人
NEC CORP
发明人
YAMAGUCHI TAKESHI
分类号
H04M1/27
主分类号
H04M1/27
代理机构
代理人
主权项
地址
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