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发明名称
Photographic enlarger
摘要
申请公布号
US2344558(A)
申请公布日期
1944.03.21
申请号
US19400346727
申请日期
1940.07.22
申请人
MOORE WALTER B
发明人
MOORE WALTER B.
分类号
G03B27/32
主分类号
G03B27/32
代理机构
代理人
主权项
地址
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