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公开(公告)号:CA317479A
公开(公告)日:1931-11-24
申请号:CA317479D
Applicant: STANDARD OIL CO
Inventor: THOMPSON ANDREW E , COVERT PITT JR
公开(公告)号:CA317479A
公开(公告)日:1931-11-24
申请号:CA317479D
Applicant: STANDARD OIL CO
Inventor: THOMPSON ANDREW E , COVERT PITT JR