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经营范围
发明名称
INCOMING CALL CHARGING SYSTEM
摘要
申请公布号
JPH03106164(A)
申请公布日期
1991.05.02
申请号
JP19890241986
申请日期
1989.09.20
申请人
HITACHI LTD
发明人
SAKUMA TETSUO;MIZUHARA NOBORU;TSUMURA TOKUMITSU
分类号
H04M3/42;H04M15/08
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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