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发明名称
Improvements in or relating to twin-lens photographic cameras
摘要
申请公布号
GB934855(A)
申请公布日期
1963.08.21
申请号
GB19600035484
申请日期
1960.10.17
申请人
FRANKE & HEIDECKE G.M.B.H.
发明人
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
主权项
地址
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