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公开(公告)号：US2607439A
公开(公告)日：1952-08-19
申请号：US4101648
申请日：1948-07-28
Applicant: TEXAS CO
Inventor： DICKENS SAMUEL P , COGHLAN CHARLES A , MORROW PHILIP G
IPC: B01D53/24
CPC classification number: B01D53/24
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