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公开(公告)号：US789595A
公开(公告)日：1905-05-09
申请号：US1905241373
申请日：1905-01-16
Applicant: DUNCAN LINDSEY , DUNCAN RICHARD O , INGRAM ARTHUR R
Inventor： DUNCAN LINDSEY , DUNCAN RICHARD O , INGRAM ARTHUR R
CPC classification number: B01D24/4631 , B01D24/14 , B01D25/06 , B01D2201/087
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