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公开(公告)号：US2582272A
公开(公告)日：1952-01-15
申请号：US77522347
申请日：1947-09-20
Applicant: SPECIALTIES DEV CORP
Inventor： PAMP JR CLARENCE T
IPC: B01D29/075 , B01D33/067
CPC classification number: B01D29/46 , B01D33/067 , B01D33/09
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