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公开(公告)号：US3201784A
公开(公告)日：1965-08-17
申请号：US14179561
申请日：1961-09-29
Applicant: IND ELECTRONICS ENGINEERS INC
Inventor： HENDRICKS JOHN E , PIATT DAVID M
CPC classification number: G09F9/405 , H01H13/023
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