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发明名称
High-frequency tube structure
摘要
申请公布号
US2450893(A)
申请公布日期
1948.10.12
申请号
US19410420771
申请日期
1941.11.28
申请人
THE SPERRY CORPORATION
发明人
HANSEN WILLIAM W.;WOODYARD JOHN R.
分类号
H01J25/12;H01P5/04
主分类号
H01J25/12
代理机构
代理人
主权项
地址
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