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发明名称
Photographic contact printing apparatus
摘要
申请公布号
US2158001(A)
申请公布日期
1939.05.09
申请号
US19370125755
申请日期
1937.02.15
申请人
DAZEY HARRY L
发明人
DAZEY HARRY L.
分类号
G03B27/08
主分类号
G03B27/08
代理机构
代理人
主权项
地址
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