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发明名称
BOUCLIER POUR L'EXECUTION DE TUNNELS TUBULAIRES EN BETON COULE SUR PLACE
摘要
申请公布号
BE859118(A1)
申请公布日期
1978.01.16
申请号
BE19770181241
申请日期
1977.09.28
申请人
WAYSS & FREYTAG A.G.
发明人
分类号
E21D9/06;E21D11/10;(IPC1-7):E21D/
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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