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发明名称
SAMPLING APPARATUS
摘要
申请公布号
CA331356(A)
申请公布日期
1933.03.28
申请号
CAD331356
申请日期
申请人
THE UNITED STATES METALS REFINING COMPANY
发明人
DAVID LONG SUMMEY
分类号
主分类号
代理机构
代理人
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