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1.发明授权System for the measurement of scale divisions including a mirror located external to an optical maser cavity 失效用于测量尺寸部分的系统，包括位于外部的镜子到光学主体腔
公开(公告)号：US3486824A
公开(公告)日：1969-12-30
申请号：US3486824D
申请日：1964-05-07
Applicant: NAT RES DEV
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