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发明名称
METHOD OF ERECTING A CLOSED SUPPORT
摘要
申请公布号
SU1500783(A1)
申请公布日期
1989.08.15
申请号
SU19874335882
申请日期
1987.11.30
申请人
ZVONAREV MIKHAIL,SU
发明人
ZVONAREV MIKHAIL I,SU
分类号
E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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