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1.发明授权Process and apparatus for the separation of materials of different specific gravity and sizes 失效用于分离不同比重和尺寸的材料的方法和设备
公开(公告)号：US2646169A
公开(公告)日：1953-07-21
申请号：US5393848
申请日：1948-10-11
Applicant: STAMICARBON
Inventor： FOX WILLEM C , LEEMAN JAN N J
IPC: B03B5/38
CPC classification number: B03B5/38
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