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发明名称
Optical device
摘要
申请公布号
US2184615(A)
申请公布日期
1939.12.26
申请号
US19370129950
申请日期
1937.03.09
申请人
ASKANIA-WERKE A. G.
发明人
GUNTBER WOLFGANG
分类号
G02B23/08
主分类号
G02B23/08
代理机构
代理人
主权项
地址
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