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公开(公告)号：US3362893A
公开(公告)日：1968-01-09
申请号：US36334264
申请日：1964-04-27
Applicant: IBM
Inventor： AMARO JACK M , GREENE KENNETH F
CPC classification number: C23C18/36 , C25D7/0614 , G11B5/64 , H01F10/00 , H01F41/26
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