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发明名称
FLOTATION FROTHER
摘要
申请公布号
CA390793(A)
申请公布日期
1940.08.20
申请号
CAD390793
申请日期
申请人
AMERICAN CYANAMID COMPANY
发明人
DAVID WALKER JAYNE, JR.;LUDWIG JACOB CHRISTMANN
分类号
主分类号
代理机构
代理人
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