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发明名称
CONFERENCE TELEPHONE SYSTEM
摘要
申请公布号
JPH04133556(A)
申请公布日期
1992.05.07
申请号
JP19900256069
申请日期
1990.09.26
申请人
FUJITSU LTD
发明人
FUKUNAGA ATSUSHI;TAKEBAYASHI TOMOYOSHI;OKUYAMA SATOSHI;HASEGAWA HIROMI;MATSUKURA RYUICHI
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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