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发明名称
Electron discharge apparatus
摘要
申请公布号
US1834131(A)
申请公布日期
1931.12.01
申请号
US19270197314
申请日期
1927.06.08
申请人
RADIO CORPORATION
发明人
MIESSNER BENJAMIN F.
分类号
H01J1/15
主分类号
H01J1/15
代理机构
代理人
主权项
地址
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