发明名称 |
Multi-level sampling device |
摘要 |
Multi-level sampling device including compartmentalized longitudinal member for lowering into loose-material to be tested at multiple levels providing for individual containers to be simultaneously filled at each respective level through a retraction of covering lids to accommodate pouring of the material into the containers followed by closing the lids and retracting the sampling device for inspection of the material in each respective container.
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申请公布号 |
US5307884(A) |
申请公布日期 |
1994.05.03 |
申请号 |
US19930010077 |
申请日期 |
1993.01.28 |
申请人 |
MILLGARD ENVIRONMENTAL CORPORATION |
发明人 |
MILLGARD, V. DENNIS |
分类号 |
E21B49/02;(IPC1-7):E21B49/02 |
主分类号 |
E21B49/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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