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发明名称
Method of making an electron tube
摘要
申请公布号
US3146515(A)
申请公布日期
1964.09.01
申请号
US19620230832
申请日期
1962.10.16
申请人
RADIO CORPORATION OF AMERICA
发明人
JR. FRANK R. RAGLAND,
分类号
H01J19/46
主分类号
H01J19/46
代理机构
代理人
主权项
地址
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