Patent search ap:("CONS ELECTRONICS IND") AND inv:"DONNELLY JAMES J" Page 1

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发明授权
Direct reading time delay relay 失效
Title translation: 直读延时继电器

公开(公告)号：US2916569A

公开(公告)日：1959-12-08

申请号：US61507056

申请日：1956-10-10

Applicant: CONS ELECTRONICS IND

Inventor： FACKLER BERNARD E , DONNELLY JAMES J , DANIELS CHARLES S

IPC: G04F3/06 , G06M1/02 , G06M1/06 , G06M1/22 , H04M3/12

CPC classification number: H04M3/12 , G04F3/06 , G06M1/02 , G06M1/062 , G06M1/22

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