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发明名称
Thermionic tube connecting means
摘要
申请公布号
US1857646(A)
申请公布日期
1932.05.10
申请号
US19270239027
申请日期
1927.12.10
申请人
ARCTURUS RADIO TUBE COMPANY
发明人
KRAHL WALTER LOUIS
分类号
H01J5/50
主分类号
H01J5/50
代理机构
代理人
主权项
地址
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