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发明名称
Apparatus for sharp focusing of twin-lens photographic cameras
摘要
申请公布号
GB723202(A)
申请公布日期
1955.02.02
申请号
GB19500025296
申请日期
1950.10.17
申请人
REINHOLD HEIDECKE
发明人
分类号
G03B13/20
主分类号
G03B13/20
代理机构
代理人
主权项
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