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经营范围
发明名称
MINING SHIELD
摘要
申请公布号
SU723154(A1)
申请公布日期
1980.03.25
申请号
SU19772563262
申请日期
1977.12.26
申请人
TULSKIJ POLT INSTITUT
发明人
MOSKVIN YURIJ K,SU
分类号
E21D9/11;E21D9/06;(IPC1-7):E21D9/06
主分类号
E21D9/11
代理机构
代理人
主权项
地址
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