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发明名称
METHOD AND DEVICE FOR CONSTRUCTING COMBINED CANAL FACING
摘要
申请公布号
RU2023790(C1)
申请公布日期
1994.11.30
申请号
SU19914919162
申请日期
1991.03.12
申请人
PETROCHENKO VYACHESLAV I
发明人
PETROCHENKO VYACHESLAV I
分类号
E02B5/02;(IPC1-7):E02B5/02
主分类号
E02B5/02
代理机构
代理人
主权项
地址
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