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公开(公告)号:US3248298A
公开(公告)日:1966-04-26
申请号:US33873464
申请日:1964-01-20
Applicant: ASEA AB
Inventor: HANS NORMAN
IPC: G21C9/00 , G21C9/012 , G21C13/10
CPC classification number: G21C9/00 , G21C9/012 , G21C13/10 , Y02E30/40