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1.发明授权
公开(公告)号：US3300404A
公开(公告)日：1967-01-24
申请号：US36209764
申请日：1964-04-23
Applicant: COMMERCIAL SOLVENTS CORP
Inventor： HOWE DAVID O , ETZEL JAMES E , MILLER ARCHIE P
IPC: C02F3/28
CPC classification number: C02F3/28 , Y10S210/916
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