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经营范围
发明名称
Penetrometer
摘要
申请公布号
US2607218(A)
申请公布日期
1952.08.19
申请号
US19510245710
申请日期
1951.09.08
申请人
RESEARCH CORPORATION
发明人
HANSEN CLARENCE M.
分类号
E02D1/02
主分类号
E02D1/02
代理机构
代理人
主权项
地址
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