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公开(公告)号：US2331235A
公开(公告)日：1943-10-05
申请号：US37681241
申请日：1941-01-31
Applicant: SHELL DEV
Inventor： RUYS JAN D , KITTLE RUSSELL L , HEATH FRANK W , DIETZ WILLIAM H
IPC: B01D17/00
CPC classification number: B01D17/00
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