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发明名称
Heater assemblies for vacuum tubes
摘要
申请公布号
US2815465(A)
申请公布日期
1957.12.03
申请号
US19550512145
申请日期
1955.05.31
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
JR. EARL J. SHELTON,;PHILLIPS ALEXANDER A.
分类号
H01J1/22
主分类号
H01J1/22
代理机构
代理人
主权项
地址
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