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1.发明授权Matrix encoder circuit employing plural trigger means each comprising a current switch and implication circuit 失效采用多个触发装置的矩阵编码器电路，每个触发装置包括电流开关和暗含电路
公开(公告)号：US3233223A
公开(公告)日：1966-02-01
申请号：US21992962
申请日：1962-08-28
Applicant: IBM
Inventor： BUELOW FRED K , HARTMAN FRANK B , LEON WILLETTE ERNEST
IPC: H03K19/086
CPC classification number: H03K19/086
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