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公开(公告)号:US2898359A
公开(公告)日:1959-08-04
申请号:US40217654
申请日:1954-01-04
Applicant: SHELL DEV
Inventor: KENNETH LEEDHAM , JAMES GARNER PHILIP
公开(公告)号:US2898359A
公开(公告)日:1959-08-04
申请号:US40217654
申请日:1954-01-04
Applicant: SHELL DEV
Inventor: KENNETH LEEDHAM , JAMES GARNER PHILIP