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公开(公告)号:US3493947A
公开(公告)日:1970-02-03
申请号:US3493947D
申请日:1967-11-28
Applicant: CSF
Inventor: GUYOT PAUL
IPC: G11C19/06 , G11B5/00 , H01F27/42
CPC classification number: G11C19/06