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公开(公告)号:CA454228A
公开(公告)日:1949-01-18
申请号:CA454228D
Applicant: SHELL DEV
Inventor: NIXON ALAN C , DAVIS ORRIS L
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公开(公告)号:CA446434A
公开(公告)日:1948-01-27
申请号:CA446434D
Applicant: SHELL DEV
Inventor: DAVIS ORRIS L , NIXON ALAN C
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公开(公告)号:CA454234A
公开(公告)日:1949-01-18
申请号:CA454234D
Applicant: SHELL DEV
Inventor: NIXON ALAN C , DAVIS ORRIS L
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公开(公告)号:CA454229A
公开(公告)日:1949-01-18
申请号:CA454229D
Applicant: SHELL DEV
Inventor: NIXON ALAN C , MCOMIE RULON WELLS , DAVIS ORRIS L
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