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公开(公告)号:US2663676A
公开(公告)日:1953-12-22
申请号:US21604951
申请日:1951-03-16
Applicant: STANDARD OIL DEV CO
Inventor: CARDWELL MILTON M , RODDEY OTHA C , TYSON CHARLES W
公开(公告)号:US2663676A
公开(公告)日:1953-12-22
申请号:US21604951
申请日:1951-03-16
Applicant: STANDARD OIL DEV CO
Inventor: CARDWELL MILTON M , RODDEY OTHA C , TYSON CHARLES W