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公开(公告)号:US2628023A
公开(公告)日:1953-02-10
申请号:US8552049
申请日:1949-04-05
Applicant: SEPARATOR AB
Inventor: AKE DAHLSTEDT PER
IPC: A01J11/10 , B04B11/02 , G05D24/02
CPC classification number: G05D24/02 , A01J11/10 , B04B11/02