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发明名称
Improvements relating to film feed mechanism for photographic roll film cameras
摘要
申请公布号
GB499544(A)
申请公布日期
1939.01.25
申请号
GB19380004852
申请日期
1938.02.16
申请人
PAUL FRANKE;REINHOLD HEIDECKE
发明人
分类号
G03B19/04
主分类号
G03B19/04
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