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发明名称
APPARATUS FOR PUTTING AN IMPERVIOUS LAYER IN THE GROUND
摘要
申请公布号
EP0225963(B1)
申请公布日期
1989.10.11
申请号
EP19860109427
申请日期
1986.07.10
申请人
WALTER, IGNAZ DR. H.C.
发明人
WALTER, IGNAZ DR. H.C.
分类号
E02D31/00
主分类号
E02D31/00
代理机构
代理人
主权项
地址
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