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公开(公告)号：CA526961A
公开(公告)日：1956-06-26
申请号：CA526961D
Applicant: STANDARD OIL CO
Inventor： JOHNSON CARL E , LIEN ARTHUR P
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公开(公告)号：CA534394A
公开(公告)日：1956-12-11
申请号：CA534394D
Applicant: STANDARD OIL CO
Inventor： JOHNSON CARL E , ADAMS CHESTER E
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