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经营范围
发明名称
Apparatus for correlating spaced points of observation
摘要
申请公布号
US1871877(A)
申请公布日期
1932.08.16
申请号
US19290373623
申请日期
1929.06.25
申请人
ROLAND LORD O'BRIAN
发明人
BUCKMAN HENRY H.
分类号
G02B5/08;G02B27/00;G02B27/01
主分类号
G02B5/08
代理机构
代理人
主权项
地址
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