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发明名称
Improvements in and relating to photographic shutters
摘要
申请公布号
GB493693(A)
申请公布日期
1938.10.11
申请号
GB19370000834
申请日期
1937.01.11
申请人
ALFRED GAUTHIER 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
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