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公开(公告)号：US3503380A
公开(公告)日：1970-03-31
申请号：US3503380D
申请日：1968-06-06
Applicant: UNITED FILTRATION CORP
Inventor： VASATURO FRANK J
IPC: F24C15/02
CPC classification number: F24C15/023 , E05D7/12 , E05Y2201/416 , E05Y2900/308
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