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发明名称
摘要
申请公布号
SE356611(B)
申请公布日期
1973.05.28
申请号
SE19690008775
申请日期
1969.06.19
申请人
POLAROID CORP,US
发明人
CHEN R,US
分类号
G03B17/52;(IPC1-7):G03B17/52;G03C5/54
主分类号
G03B17/52
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