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发明名称
FAIRING OF MINE DOUBLE-T SHAPE BUNTONS
摘要
申请公布号
RU1789703(C)
申请公布日期
1993.01.23
申请号
SU19904869106
申请日期
1990.09.24
申请人
DN GORNYJ I IM.ARTEMA
发明人
KIRIN ROMAN S,SU
分类号
E21D7/00
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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