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公开(公告)号:CA504509A
公开(公告)日:1954-07-20
申请号:CA504509D
Applicant: STANDARD OIL DEV CO
Inventor: WRIGHT DONALD L , DAVIS WILLIAM S JR
公开(公告)号:CA504509A
公开(公告)日:1954-07-20
申请号:CA504509D
Applicant: STANDARD OIL DEV CO
Inventor: WRIGHT DONALD L , DAVIS WILLIAM S JR