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发明名称
WORKING MEMBER FOR UNDERGROUND LAYNG FLUMES MADE OF FILM
摘要
申请公布号
SU755963(A1)
申请公布日期
1980.08.15
申请号
SU19782605790
申请日期
1978.04.14
申请人
UK NII GIDROTEKHNIKI MELIORATSII
发明人
PETROCHENKO VYACHESLAV ,SU
分类号
E02F5/10;(IPC1-7):E02F5/10
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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