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经营范围
发明名称
SEGMENT DE BLINDAGE DE TUNNEL.
摘要
申请公布号
CH654066(A5)
申请公布日期
1986.01.31
申请号
CH19820004755
申请日期
1982.08.06
申请人
COMMERCIAL SHEARING, INC.
发明人
BIRCH, ROBERT M.;BROWN, WARREN E.
分类号
E21D11/08;(IPC1-7):E21D11/08
主分类号
E21D11/08
代理机构
代理人
主权项
地址
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