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发明名称
LENS FOR OPTICAL OBSERVATION INSTRUMENTS
摘要
申请公布号
CA414852(A)
申请公布日期
1943.08.31
申请号
CAD414852
申请日期
申请人
BARR AND STROUD
发明人
JAMES WEIR FRENCH
分类号
主分类号
代理机构
代理人
主权项
地址
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