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经营范围
发明名称
An instrumented stopper rod assembly for a heavy dynamic penetration test
摘要
申请公布号
CZ30288(U1)
申请公布日期
2017.02.01
申请号
CZ20160033105U
申请日期
2016.11.30
申请人
GEOSTAR, spol. s r.o.
发明人
Relich David
分类号
E02D1/02;E21B47/01;E21B47/12
主分类号
E02D1/02
代理机构
代理人
主权项
地址
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