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发明名称
EMTPY SLOT COMMUNICATIONS RING
摘要
申请公布号
GB2095075(B)
申请公布日期
1985.03.20
申请号
GB19810007987
申请日期
1981.03.13
申请人
DATA RECALL LTD
发明人
分类号
H04L12/43;(IPC1-7):H04J3/00
主分类号
H04L12/43
代理机构
代理人
主权项
地址
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