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经营范围
发明名称
WALL CONSTRUCTION
摘要
申请公布号
US3496726(A)
申请公布日期
1970.02.24
申请号
USD3496726
申请日期
1967.11.07
申请人
BERGWERKSVERBAND GMBH.
发明人
HANS OTTO LUTGENDORF
分类号
E21D5/00;E21D5/01;(IPC1-7):E21D5/00;E21B17/00;E21B41/00
主分类号
E21D5/00
代理机构
代理人
主权项
地址
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