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发明名称
Soil sampling apparatus
摘要
申请公布号
US2382992(A)
申请公布日期
1945.08.21
申请号
US19440521890
申请日期
1944.02.10
申请人
STEWART HARRIS JESSE
发明人
HARRIS JESSE STEWART
分类号
E02D1/04;E21B7/26;E21B49/02
主分类号
E02D1/04
代理机构
代理人
主权项
地址
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