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公开(公告)号:US3492218A
公开(公告)日:1970-01-27
申请号:US3492218D
申请日:1967-11-20
Applicant: BRITISH PETROLEUM CO
Inventor: COLLIER ALAN , LAWRENCE PAUL ANTHONY , HARRIS ROBERT JAMES KEIR
公开(公告)号:US3492218A
公开(公告)日:1970-01-27
申请号:US3492218D
申请日:1967-11-20
Applicant: BRITISH PETROLEUM CO
Inventor: COLLIER ALAN , LAWRENCE PAUL ANTHONY , HARRIS ROBERT JAMES KEIR