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公开(公告)号:CA504339A
公开(公告)日:1954-07-13
申请号:CA504339D
Applicant: STANDARD OIL DEV CO
Inventor: SPARKS WILLIAMS J , YOUNG DAVID W
公开(公告)号:CA504339A
公开(公告)日:1954-07-13
申请号:CA504339D
Applicant: STANDARD OIL DEV CO
Inventor: SPARKS WILLIAMS J , YOUNG DAVID W