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发明名称
Optical system
摘要
申请公布号
US2406762(A)
申请公布日期
1946.09.03
申请号
US19430491493
申请日期
1943.06.19
申请人
POLAROID CORPORATION
发明人
GREY DAVID S.
分类号
G02B13/00
主分类号
G02B13/00
代理机构
代理人
主权项
地址
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