Patent search ap:("GEN ELECTRIC") AND inv:"SHAFER SYLVESTER N" Page 1

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发明授权
Motion detecting device 失效
Title translation: 运动检测装置

公开(公告)号：US2802178A

公开(公告)日：1957-08-06

申请号：US45768254

申请日：1954-09-22

Applicant: GEN ELECTRIC

Inventor： SHAFER SYLVESTER N , ROBERT PLUNKETT

IPC: G01B7/02 , G01H11/06

CPC classification number: G01B7/023 , G01H11/06

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