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2.
公开(公告)号:US2184930A
公开(公告)日:1939-12-26
申请号:US2257035
申请日:1935-05-21
Applicant: SHELL DEV
Inventor: RUYS JAN D , PYZEL EWALD D
IPC: C07C5/02
CPC classification number: C07C5/02
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公开(公告)号:US2089038A
公开(公告)日:1937-08-03
申请号:US6096336
申请日:1936-01-27
Applicant: SHELL DEV
Inventor: PYZEL EWALD D
IPC: B01J8/06
CPC classification number: B01J8/06 , B01J2208/00212
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