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公开(公告)号：US1649581A
公开(公告)日：1927-11-15
申请号：US46558121
申请日：1921-04-29
Applicant: UNITED FILTERS CORP
Inventor： GENTEP ALBERT L , MCCASKELL JASPER A
IPC: B01D33/21
CPC classification number: B01D33/21 , B01D33/465 , B01D33/466 , B01D2201/282
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