Vacuum-tube-filament connection and method of connecting,申请号US19280249261-传众专利搜索

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发明名称	Vacuum-tube-filament connection and method of connecting
摘要
申请公布号	US1774698(A)	申请公布日期	1930.09.02
申请号	US19280249261	申请日期	1928.01.25
申请人	ARCTURUS RADIO TUBE COMPANY	发明人	BRASELTON CHESTER H.
分类号	H01J1/22;H01J9/18	主分类号	H01J1/22
代理机构		代理人
主权项
地址

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