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经营范围
发明名称
Photographic cameras
摘要
申请公布号
GB621871(A)
申请公布日期
1949.04.21
申请号
GB19460019131
申请日期
1946.06.26
申请人
POWERS PHOTO ENGRAVING COMPANY
发明人
分类号
G03B33/00
主分类号
G03B33/00
代理机构
代理人
主权项
地址
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