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发明名称
Process for concentrating all kinds of precious metal ores by froth flotation
摘要
申请公布号
US2030526(A)
申请公布日期
1936.02.11
申请号
US19350016924
申请日期
1935.04.17
申请人
RUDOLF MELZER CARL GOTTFRIED
发明人
MELZER CARL GOTTFRIED RUDOLF
分类号
B03D1/002
主分类号
B03D1/002
代理机构
代理人
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