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经营范围
发明名称
MOTION PICTURE PROJECTION SYSTEMS
摘要
申请公布号
CA470475(A)
申请公布日期
1951.01.02
申请号
CAD470475
申请日期
申请人
CANADIAN GENERAL ELECTRIC COMPANY
发明人
DONALD E. NORGAARD
分类号
主分类号
代理机构
代理人
主权项
地址
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