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发明名称
摘要
申请公布号
FR2061968(A5)
申请公布日期
1971.06.25
申请号
FR19690034071
申请日期
1969.10.06
申请人
POLAROID CORP
发明人
分类号
G03B17/52;(IPC1-7):G03B17/00
主分类号
G03B17/52
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