Patent search ap:("ENGLISH ELECTRIC CO LTD") AND inv:"DAVID NELLIST BRIAN" Page 1

1.

发明授权
Electrical time-overcurrent relays 失效
Title translation: 电气时间过流继电器

公开(公告)号：US3036248A

公开(公告)日：1962-05-22

申请号：US85700259

申请日：1959-12-03

Applicant: ENGLISH ELECTRIC CO LTD

Inventor： DAVID NELLIST BRIAN

IPC: G04C3/04 , H01H53/10 , H01H53/12 , H01H71/42 , H01H71/44 , H02H3/093 , H04M3/12

CPC classification number: H02H3/093 , G04C3/04 , H01H53/10 , H01H53/12 , H01H71/42 , H01H71/44 , H04M3/12

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