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公开(公告)号:CA374187A
公开(公告)日:1938-06-07
申请号:CA374187D
Applicant: SHELL DEV
Inventor: ENGS WILLIAM , GRIENDT GERALD HENRY VAN DE
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公开(公告)号:CA381443A
公开(公告)日:1939-05-16
申请号:CA381443D
Applicant: SHELL DEV
Inventor: GRIENDT GERALD HENRY VAN DE
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公开(公告)号:CA391133A
公开(公告)日:1940-09-03
申请号:CA391133D
Applicant: SHELL DEV
Inventor: ENGS WILLIAM , GRIENDT GERALD HENRY VAN DE
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公开(公告)号:CA347900A
公开(公告)日:1935-01-29
申请号:CA347900D
Applicant: SHELL DEV
Inventor: WILLIAMS EVAN CLIFFORD , GRIENDT GERALD HENRY VAN DE
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