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公开(公告)号:CA457416A
公开(公告)日:1949-06-14
申请号:CA457416D
Applicant: STANDARD OIL DEV CO
Inventor: MEIER HERBERT H
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12.
公开(公告)号:CA456792A
公开(公告)日:1949-05-17
申请号:CA456792D
Applicant: STANDARD OIL DEV CO
Inventor: MEIER HERBERT H
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公开(公告)号:CA446187A
公开(公告)日:1948-01-13
申请号:CA446187D
Applicant: STANDARD OIL DEV CO
Inventor: MEIER HERBERT H
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