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公开(公告)号：CA426138A
公开(公告)日：1945-03-13
申请号：CA426138D
Applicant: STANDARD OIL DEV CO
Inventor： CALHOUN B VAN
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公开(公告)号：CA433043A
公开(公告)日：1946-02-12
申请号：CA433043D
Applicant: STANDARD OIL DEV CO
Inventor： CALHOUN B VAN , LAUGHLIN KENNETH C
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