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发明名称
Filament support
摘要
申请公布号
US2444483(A)
申请公布日期
1948.07.06
申请号
US19460671829
申请日期
1946.05.23
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
JR. ARTHUR K. WING,
分类号
H01J1/18
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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