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公开(公告)号：CA568304A
公开(公告)日：1958-12-30
申请号：CA568304D
Applicant: SHELL DEV
Inventor： MORRIS RUPERT C , NORTON DOUGLAS G
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公开(公告)号：CA568301A
公开(公告)日：1958-12-30
申请号：CA568301D
Applicant: SHELL DEV
Inventor： MCALLISTER SUMNER H , MORRIS RUPERT C , NORTON DOUGLAS G
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