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公开(公告)号：US3460469A
公开(公告)日：1969-08-12
申请号：US3460469D
申请日：1966-12-30
Applicant: IBM
Inventor： BROWN EDGAR ALAN , CHOU ALBERT S , DARLING RICHARD H
CPC classification number: H01F7/08 , B41J9/36 , H01F7/1883
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公开(公告)号：US3449639A
公开(公告)日：1969-06-10
申请号：US3449639D
申请日：1966-12-30
Applicant: IBM
Inventor： BROWN EDGAR ALAN , DARLING RICHARD H
CPC classification number: B41J9/36 , H01F7/18 , H01F2029/143
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