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公开(公告)号：US2609276A
公开(公告)日：1952-09-02
申请号：US5104848
申请日：1948-09-24
Applicant: STANDARD OIL DEV CO
Inventor： CASLER JOHN R , NELSON CHANNING C
IPC: B01D11/04
CPC classification number: B01D11/043
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