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发明名称
MECHANICAL SOIL SAMPLER
摘要
申请公布号
US3625296(A)
申请公布日期
1971.12.07
申请号
USD3625296
申请日期
1969.12.30
申请人
AGRICULTURE USA
发明人
HAROLD E. MABRY;DONALD WHITTAM
分类号
E21B49/02;(IPC1-7):G01N1/08
主分类号
E21B49/02
代理机构
代理人
主权项
地址
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