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公开(公告)号：US2643183A
公开(公告)日：1953-06-23
申请号：US75297247
申请日：1947-06-06
Applicant: STANDARD OIL DEV CO
Inventor： EFFERSON GEORGE M
IPC: B01J4/00 , B01J19/00 , C08F2/00 , C08F210/12
CPC classification number: B01J19/0066 , B01J4/001 , B01J19/0053 , B01J2219/00094 , B01J2219/00162 , B01J2219/00164 , B01J2219/00193 , B01J2219/00247 , C08F210/12 , C08F4/005
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