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发明名称
EXTENSION ARRANGEMENT AND STATION CONNECTING METHOD FOR A RING COMMUNICATION SYSTEM
摘要
申请公布号
EP0198932(B1)
申请公布日期
1990.07.25
申请号
EP19850104886
申请日期
1985.04.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
KELLER, HEINZ JOSEF;MUELLER, JOHANN RUDOLF
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
主权项
地址
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