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公开(公告)号：US2563644A
公开(公告)日：1951-08-07
申请号：US10192849
申请日：1949-06-29
Applicant: COMPTOIR TEXTILES ARTIFICIELS
Inventor： NICOLAS DRISCH , PAUL HERRBACH
CPC classification number: B01D71/38 , Y10S424/07
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