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发明名称
CONNEXION FOR AUTOMATIC BLOCK IN THE FRAME OF AUTOMATIC SIGNAL CONTROL
摘要
申请公布号
CS224858(B1)
申请公布日期
1984.01.16
申请号
CS19810004142
申请日期
1981.06.04
申请人
VAVRICEK VALTER,CS
发明人
VAVRICEK VALTER,CS
分类号
E21F17/00;(IPC1-7):E21F17/00
主分类号
E21F17/00
代理机构
代理人
主权项
地址
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