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公开(公告)号：US2754004A
公开(公告)日：1956-07-10
申请号：US34617753
申请日：1953-04-01
Applicant: INTERNAZ SUPERFILTRI COMP
Inventor： NICOLA D URSO
CPC classification number: B01D35/18 , B01D29/39 , B01D29/96 , B01D35/12 , B01D35/143 , B01D2201/309
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