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11.
公开(公告)号:CA530594A
公开(公告)日:1956-09-18
申请号:CA530594D
Applicant: SHELL DEV
Inventor: THORPE ROY E , HARMAN DENHAM
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公开(公告)号:CA524339A
公开(公告)日:1956-04-24
申请号:CA524339D
Applicant: SHELL DEV
Inventor: STILES ALAN R , HARMAN DENHAM
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公开(公告)号:CA496690A
公开(公告)日:1953-10-06
申请号:CA496690D
Applicant: SHELL DEV
Inventor: VAUGHAN WILLIAM E , HARMAN DENHAM
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