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公开(公告)号:US3355868A
公开(公告)日:1967-12-05
申请号:US57736966
申请日:1966-09-06
发明人: LADISLAV CIVRNY , JOSEF HAVEL , ZDENEK HAVRANEK , VITEZSLAV PILECKY , LADISLAV SVOBODA , NAD ORLICI USTI , VITALIJ ZESTKOV
CPC分类号: D01H4/48 , B65H51/28 , B65H2701/31 , D01H1/42 , D01H4/00