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经营范围
发明名称
Electronic apparatus
摘要
申请公布号
US2282901(A)
申请公布日期
1942.05.12
申请号
US19400365936
申请日期
1940.11.16
申请人
GENERAL ELECTRIC COMPANY
发明人
STEINER HARRY C.;PETERSON EUGENE F.
分类号
H01J13/32
主分类号
H01J13/32
代理机构
代理人
主权项
地址
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