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公开(公告)号：CA647026A
公开(公告)日：1962-08-21
申请号：CA647026D
Applicant: LUBRIZOL CORP
Inventor： HIGGINS WILLIAM A , LESUER WILLIAM M
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72.发明专利
公开(公告)号：CA564962A
公开(公告)日：1958-10-21
申请号：CA564962D
Applicant: LUBRIZOL CORP
Inventor： HIGGINS WILLIAM A , CRAIG WILLIS G
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