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发明名称
Electric tube construction
摘要
申请公布号
US2107254(A)
申请公布日期
1938.02.01
申请号
US19350053848
申请日期
1935.12.11
申请人
ARCTURUS DEVELOPMENT COMPANY
发明人
HORN CLARENCE A.
分类号
H01J9/32
主分类号
H01J9/32
代理机构
代理人
主权项
地址
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