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发明名称
Improvements relating to lens shutters, especially for apparatus for photographing landscapes in series from aircraft
摘要
申请公布号
GB331174(A)
申请公布日期
1930.06.26
申请号
GB19290035733
申请日期
1929.11.22
申请人
MESSTER-OPTIKON G.M.B.H.
发明人
分类号
G03B9/08
主分类号
G03B9/08
代理机构
代理人
主权项
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