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1.发明授权Apparatus for emptying drums containing very thick lubricants or other viscous materials 失效用于排空含有非常厚的润滑剂或其他粘性材料的滚筒的装置
公开(公告)号：US2105160A
公开(公告)日：1938-01-11
申请号：US11484536
申请日：1936-12-08
Applicant: EMILE PIQUERES
Inventor： EMILE PIQUERES
CPC classification number: B65D83/0055 , B05B9/047
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