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经营范围
发明名称
Electric discharge apparatus
摘要
申请公布号
US1849848(A)
申请公布日期
1932.03.15
申请号
US19290374132
申请日期
1929.06.27
申请人
GENERAL ELECTRIC COMPANY
发明人
MURPHY GEORGE F.
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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