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发明名称
Penetrometer for exploration of under-water strata
摘要
申请公布号
FR1603725(A)
申请公布日期
1971.05.24
申请号
FRD1603725
申请日期
1968.08.05
申请人
发明人
分类号
E02D1/02;E21B47/00;E21B49/00;G01N3/40
主分类号
E02D1/02
代理机构
代理人
主权项
地址
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