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发明名称
ELECTRON DISCHARGE DEVICE
摘要
申请公布号
CA321213(A)
申请公布日期
1932.04.05
申请号
CAD321213
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
JOHN W. MARDEN
分类号
主分类号
代理机构
代理人
主权项
地址
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