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公开(公告)号:US2604437A
公开(公告)日:1952-07-22
申请号:US8931249
申请日:1949-04-23
Applicant: STANDARD OIL DEV CO
Inventor: CONNOR JOHN E , GUSTAFSON CLIFFORD E
公开(公告)号:US2604437A
公开(公告)日:1952-07-22
申请号:US8931249
申请日:1949-04-23
Applicant: STANDARD OIL DEV CO
Inventor: CONNOR JOHN E , GUSTAFSON CLIFFORD E