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公开(公告)号：US2826227A
公开(公告)日：1958-03-11
申请号：US45003654
申请日：1954-08-16
Applicant: FILPER CORP
Inventor： JOSEPH PERRELLI , KEESLING THOMAS B
IPC: A23N4/04
CPC classification number: A23N4/04
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