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发明名称
HOLDING CALL INFORMING SYSTEM TO CALLED PARTY
摘要
申请公布号
JPH0470090(A)
申请公布日期
1992.03.05
申请号
JP19900180920
申请日期
1990.07.09
申请人
NEC ENG LTD
发明人
FUKIYA KATSUMI
分类号
H04M3/50;H04M3/42;H04M3/533;H04Q3/58
主分类号
H04M3/50
代理机构
代理人
主权项
地址
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