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经营范围
发明名称
Electron multiplier tube
摘要
申请公布号
US2246172(A)
申请公布日期
1941.06.17
申请号
US19370152487
申请日期
1937.07.08
申请人
HAZELTINE CORPORATION
发明人
HERGENROTHER RUDOLF C.
分类号
H01J43/22
主分类号
H01J43/22
代理机构
代理人
主权项
地址
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