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发明名称
MULTI-PARTY TELEPHONE SYSTEM
摘要
申请公布号
JPH02128563(A)
申请公布日期
1990.05.16
申请号
JP19880282839
申请日期
1988.11.09
申请人
NEC CORP;NEC MIYAGI LTD
发明人
KATO TADAHARU;ENDO KATSUNORI
分类号
H04M9/02;H04M7/00
主分类号
H04M9/02
代理机构
代理人
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地址
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