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公开(公告)号：US2538089A
公开(公告)日：1951-01-16
申请号：US70713346
申请日：1946-11-01
Applicant: SAINT GOBAIN
Inventor： RENE FATON JOSEPH LOUIS
CPC classification number: B01J3/03 , F16J13/04 , Y10T292/20 , Y10T292/23
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