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发明名称
TELEPHONE CALL SERVICE SYSTEM
摘要
申请公布号
JPS6316753(A)
申请公布日期
1988.01.23
申请号
JP19860161207
申请日期
1986.07.09
申请人
NEC CORP
发明人
TOYOHARA TAKEHIKO
分类号
H04M15/00;H04M15/08
主分类号
H04M15/00
代理机构
代理人
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地址
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