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公开(公告)号:BR7801419A
公开(公告)日:1978-10-03
申请号:BR7801419
申请日:1978-03-08
Applicant: IBM
Inventor: CUOMO J , VECHTEN J , GAMBINO R
IPC: G21F9/02 , G21G4/00 , G21H1/00 , G21H5/00 , G21F1/08 , G21F5/00 , G21G4/06