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发明名称
Improvements in or relating to the development of small-size photographic films
摘要
申请公布号
GB773826(A)
申请公布日期
1957.05.01
申请号
GB19550005153
申请日期
1955.02.21
申请人
SCHLEUSSNER FOTOWERKE G.M.B.H.
发明人
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主分类号
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