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公开(公告)号：US2634063A
公开(公告)日：1953-04-07
申请号：US220648
申请日：1948-01-14
Applicant: IBM
Inventor： PARIS ROBERT E , BAKELAAR JOHN H , COMSTOCK EMERSON F
IPC: B41J33/34 , B41J33/518 , B41J35/36
CPC classification number: B41J33/518 , B41J33/34 , B41J35/36
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