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发明名称
Device for illuminating and exhibiting transparencies
摘要
申请公布号
US2418225(A)
申请公布日期
1947.04.01
申请号
US19440562488
申请日期
1944.11.08
申请人
JOSEPH GROSS;ALEX GROSS
发明人
GROSS JOSEPH;GROSS ALEX
分类号
B44C5/02;G09F13/04
主分类号
B44C5/02
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代理人
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