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发明名称
COMPOSITE CONCENTRATION SYSTEM
摘要
申请公布号
EP0075305(A3)
申请公布日期
1983.07.20
申请号
EP19820108664
申请日期
1982.09.20
申请人
NIPPON TELEGRAPH AND TELEPHONE PUBLIC CORPORATION;NEC CORPORATION;HITACHI, LTD.;OKI ELECTRIC INDUSTRY COMPANY, LIMITED;FUJITSU LIMITED
发明人
YASUI, TADAHIKO;ITO, SHIZUO;HORIKI, AKIRA;YAMADA, HAJIME;USAMI, TAKASHI
分类号
H04Q3/545;H04Q3/60;H04Q11/04;(IPC1-7):H04Q11/04
主分类号
H04Q3/545
代理机构
代理人
主权项
地址
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