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经营范围
发明名称
Improvements in or relating to folding hoods for viewing devices in photographic cameras
摘要
申请公布号
GB641075(A)
申请公布日期
1950.08.02
申请号
GB19460021912
申请日期
1946.07.23
申请人
JACQUES BOLSEY
发明人
分类号
G03B11/04
主分类号
G03B11/04
代理机构
代理人
主权项
地址
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