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发明名称
BIDIRECTIONAL COMMUNICATION EQUIPMENT FOR UNDERGROUND FACILITY
摘要
申请公布号
JPS63194425(A)
申请公布日期
1988.08.11
申请号
JP19870315437
申请日期
1987.12.15
申请人
OUTOKUMPU OY
发明人
ANTEI BERUGU
分类号
H04B1/40;H04B5/00;H04B7/00;H04B13/00;H04B14/00;H04B14/04;H04L5/16;H04L27/10
主分类号
H04B1/40
代理机构
代理人
主权项
地址
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