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发明名称
ELECTRICALLY OPERATED PHOTOGRAPHIC SHUTTERS
摘要
申请公布号
CA474017(A)
申请公布日期
1951.05.29
申请号
CAD474017
申请日期
申请人
GENERAL ANILINE AND FILM CORPORATION
发明人
FREDERICK P. WILLCOX
分类号
主分类号
代理机构
代理人
主权项
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