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公开(公告)号：US3346086A
公开(公告)日：1967-10-10
申请号：US31137363
申请日：1963-09-25
Applicant: IBM
Inventor： CRALLE JR WALTER O , HOLT GEORGE A , LENNEY EDWIN J , SEDERHOLM DOUGLAS E , WALTON NEIL D
CPC classification number: B41J19/64 , B41J19/58 , B41J29/42 , Y10T74/1946
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