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经营范围
发明名称
Improved locking device for camera back in photographic roll film cameras
摘要
申请公布号
GB684998(A)
申请公布日期
1952.12.31
申请号
GB19500023906
申请日期
1950.09.29
申请人
REINHOLD HEIDECKE
发明人
分类号
G03B17/04
主分类号
G03B17/04
代理机构
代理人
主权项
地址
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