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发明名称
TRANSMISSION OF PICTURES
摘要
申请公布号
CA299721(A)
申请公布日期
1930.04.29
申请号
CAD299721
申请日期
申请人
THE CANADIAN GENERAL ELECTRIC COMPANY
发明人
ERNST F. W. ALEXANDERSON
分类号
主分类号
代理机构
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