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公开(公告)号:CA559077A
公开(公告)日:1958-06-17
申请号:CA559077D
Applicant: SHELL DEV
Inventor: HYMAN JULIUS , SILVERMAN MILTON
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公开(公告)号:CA726201A
公开(公告)日:1966-01-18
申请号:CA726201D
Applicant: SHELL DEV
Inventor: SILVERMAN MILTON , STILES ALAN R
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