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公开(公告)号:CA386198A
公开(公告)日:1940-01-09
申请号:CA386198D
Applicant: SHELL DEV
Inventor: WHITE ELLIS R , YABROFF DAVID LOUIS
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公开(公告)号:CA383121A
公开(公告)日:1939-08-01
申请号:CA383121D
Applicant: SHELL DEV
Inventor: YABROFF DAVID LOUIS , WHITE ELLIS R
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公开(公告)号:CA406258A
公开(公告)日:1942-07-21
申请号:CA406258D
Applicant: SHELL DEV
Inventor: YABROFF DAVID LOUIS , WHITE ELLIS R
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公开(公告)号:CA381585A
公开(公告)日:1939-05-23
申请号:CA381585D
Applicant: SHELL DEV
Inventor: WHITE ELLIS R , YABROFF DAVID LOUIS
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公开(公告)号:CA468256A
公开(公告)日:1950-09-19
申请号:CA468256D
Applicant: SHELL DEV
Inventor: WHITE ELLIS R , WALTERS ERNEST L
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公开(公告)号:CA468255A
公开(公告)日:1950-09-19
申请号:CA468255D
Applicant: SHELL DEV
Inventor: WHITE ELLIS R , WALTERS ERNEST L
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