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公开(公告)号：US3354068A
公开(公告)日：1967-11-21
申请号：US20072262
申请日：1962-06-07
Applicant: STANDARD OIL CO
Inventor： RIGHTMIRE ROBERT A , BROWN GLENN R , ROWLAND RICHARD L
CPC classification number: C02F1/4691 , B01D57/02 , C02F2001/46161
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