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公开(公告)号：US2338866A
公开(公告)日：1944-01-11
申请号：US46215042
申请日：1942-10-15
Applicant: IBM
Inventor： RICARDO MUNIZ , JERRIER HADDAD
IPC: G08C19/00
CPC classification number: G08C19/00 , Y10T307/944
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