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公开(公告)号:US2552032A
公开(公告)日:1951-05-08
申请号:US3366748
申请日:1948-06-17
Applicant: HONORARY ADVISORY COUNCIL SCI
Inventor: HADFIELD BOOTH ADRIAN
IPC: C01B25/02
CPC classification number: G21G1/001 , C01B25/003 , C01B25/01 , C01B25/02 , G21G2001/0094