Patent search ap:("NAT RES DEV") AND inv:"RIDDLE CECIL" Page 1

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发明授权
Instrument for providing signals representative of the position of a moving target 失效
Title translation: 用于提供移动目标位置信号的仪表

公开(公告)号：US3471697A

公开(公告)日：1969-10-07

申请号：US45634565

申请日：1965-05-17

Applicant: NAT RES DEV

Inventor： RIDDLE CECIL

IPC: G01S3/786 , G01T1/16 , G01J1/20 , H01J39/00

CPC classification number: G01S3/786

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