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公开(公告)号：CA510556A
公开(公告)日：1955-03-01
申请号：CA510556D
Applicant: SHELL DEV
Inventor： GAERTNER GEORGE W JR , MECORNEY JOHN W
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公开(公告)号：CA507249A
公开(公告)日：1954-11-09
申请号：CA507249D
Applicant: SHELL DEV
Inventor： MECORNEY JOHN W , GAERTNER GEORGE W JR
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