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发明名称
摘要
申请公布号
DE2701250(C2)
申请公布日期
1988.08.11
申请号
DE19772701250
申请日期
1977.01.13
申请人
POLAROID CORP., CAMBRIDGE, MASS., US
发明人
JOHNSON, BRUCE KEAN, ANDOVER, MASS., US;WHITESIDE, GEORGE D'ARCY, LEXINGTON, MASS., US
分类号
G03B9/40;G03B9/08;G03B9/24;G03B9/42;G03B17/42;G03B17/52;(IPC1-7):G03B9/08
主分类号
G03B9/40
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代理人
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