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发明名称
Werkwijze en inrichting voor het in de grond aanbrengen van een beklede sleuf; alsmede een dergelijke beklede sleuf.
摘要
申请公布号
NL9301758(A)
申请公布日期
1995.05.01
申请号
NL19930001758
申请日期
1993.10.11
申请人
JACOB HERMEN KETEL
发明人
分类号
E21D9/06;E02D29/05;E21D11/04;(IPC1-7):E01C1/00;E02F5/10;E21D11/08
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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