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1.发明授权
公开(公告)号：US3147212A
公开(公告)日：1964-09-01
申请号：US12724561
申请日：1961-07-27
Applicant: STAMICARBON
Inventor： KOPPEN CHRISTIANUS W J VAN , FONTEIN FREEK J
IPC: B03B5/44
CPC classification number: B03B5/447
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公开(公告)号：US3420443A
公开(公告)日：1969-01-07
申请号：US3420443D
申请日：1966-05-02
Applicant: STAMICARBON
Inventor： KOPPEN CHRISTIANUS W J VAN , THOMAS CORNELIS
CPC classification number: B07B1/00 , B03B5/447 , B07B2230/01 , Y10T137/8593
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