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公开(公告)号：US2398213A
公开(公告)日：1946-04-09
申请号：US46199042
申请日：1942-10-14
Applicant: STANDARD OIL DEV CO
Inventor： DUTSON JR KEITH J F , SMITH DELMAS A
IPC: B01D3/42
CPC classification number: B01D3/4283
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