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公开(公告)号:CA453720A
公开(公告)日:1948-12-28
申请号:CA453720D
Applicant: SHELL DEV
Inventor: HAURY VERNON E , BALLARD SEAVER A
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公开(公告)号:CA466732A
公开(公告)日:1950-07-18
申请号:CA466732D
Applicant: SHELL DEV
Inventor: BALLARD SEAVOR A , HAURY VERNON E
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公开(公告)号:CA425994A
公开(公告)日:1945-03-06
申请号:CA425994D
Applicant: SHELL DEV
Inventor: ALLEN CLYVE C , HAURY VERNON E
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公开(公告)号:CA411655A
公开(公告)日:1943-04-06
申请号:CA411655D
Applicant: SHELL DEV
Inventor: BALLARD SEAVER A , HAURY VERNON E
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公开(公告)号:CA430297A
公开(公告)日:1945-09-25
申请号:CA430297D
Applicant: SHELL DEV
Inventor: BALLARD SEAVER A , HAURY VERNON E
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公开(公告)号:CA410421A
公开(公告)日:1943-02-02
申请号:CA410421D
Applicant: SHELL DEV
Inventor: ALLEN CLYVE C , HAURY VERNON E
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