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公开(公告)号:CA313543A
公开(公告)日:1931-07-21
申请号:CA313543D
Applicant: STANDARD OIL DEV CO
Inventor: KUHL PAUL E , NICHOLS HENRY J JR
公开(公告)号:CA313543A
公开(公告)日:1931-07-21
申请号:CA313543D
Applicant: STANDARD OIL DEV CO
Inventor: KUHL PAUL E , NICHOLS HENRY J JR