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发明名称
Photographic apparatus
摘要
申请公布号
US1822345(A)
申请公布日期
1931.09.08
申请号
US19280289721
申请日期
1928.07.02
申请人
PHOTOSTAT CORPORATION
发明人
GREENE JOHN S.
分类号
G03B17/50
主分类号
G03B17/50
代理机构
代理人
主权项
地址
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