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公开(公告)号:US3460467A
公开(公告)日:1969-08-12
申请号:US3460467D
申请日:1966-12-27
Applicant: SUNDS AB
Inventor: NYSTROM OLOF BIRGER
IPC: B30B9/20 , D21F1/66 , D21F1/78 , B01D33/06 , B30B3/04
CPC classification number: D21F1/78 , B30B9/20 , D21F1/66