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发明名称
CHARGING INFORMATION COLLECTING DEVICE FOR TELEPHONE SET
摘要
申请公布号
JPH0380755(A)
申请公布日期
1991.04.05
申请号
JP19890216048
申请日期
1989.08.24
申请人
NEC CORP
发明人
YOSHINAKA KAZUO
分类号
H04M15/12
主分类号
H04M15/12
代理机构
代理人
主权项
地址
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