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发明名称
Oscillograph apparatus
摘要
申请公布号
US2169726(A)
申请公布日期
1939.08.15
申请号
US19370152951
申请日期
1937.07.10
申请人
RADIO CORPORATION OF AMERICA
发明人
GEORGE ROSCOE HENRY
分类号
H01J29/86
主分类号
H01J29/86
代理机构
代理人
主权项
地址
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