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发明名称
Photographic apparatus
摘要
申请公布号
US1744773(A)
申请公布日期
1930.01.28
申请号
US19270163149
申请日期
1927.01.24
申请人
EMILE LABRELY
发明人
LABRELY EMILE
分类号
G03B1/18
主分类号
G03B1/18
代理机构
代理人
主权项
地址
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