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经营范围
发明名称
Improvements in or relating to optical collimating systems
摘要
申请公布号
GB578925(A)
申请公布日期
1946.07.17
申请号
GB19440006916
申请日期
1944.04.14
申请人
INTERNATIONAL POLAROID CORPORATION
发明人
分类号
G02B23/10
主分类号
G02B23/10
代理机构
代理人
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