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发明名称
Machine for the extraction of gold and other minerals
摘要
申请公布号
US2284105(A)
申请公布日期
1942.05.26
申请号
US19400358763
申请日期
1940.09.28
申请人
WESLEY STAYLES
发明人
STAGEBERG STERLING
分类号
C22B11/12
主分类号
C22B11/12
代理机构
代理人
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