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发明名称
Photographic apparatus
摘要
申请公布号
US2303920(A)
申请公布日期
1942.12.01
申请号
US19400326951
申请日期
1940.03.30
申请人
BURKE & JAMES, INC.
发明人
DRUCKER ALBERT
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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