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公开(公告)号:CA477103A
公开(公告)日:1951-09-18
申请号:CA477103D
Applicant: SHELL DEV
Inventor: DEBENEDICTIS ALDO , LUTEN DANIEL B JR
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公开(公告)号:CA445516A
公开(公告)日:1947-12-09
申请号:CA445516D
Applicant: SHELL DEV
Inventor: LUTEN DANIEL B JR , DEBENEDICTIS ALDO
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