Polyphase photo-electric device,申请号US19300505057-传众专利搜索

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发明名称	Polyphase photo-electric device
摘要
申请公布号	US1912139(A)	申请公布日期	1933.05.30
申请号	US19300505057	申请日期	1930.12.27
申请人	WIRED RADIO, INC.	发明人	HOUGH CLINTON WALLACE
分类号	H01J40/16	主分类号	H01J40/16
代理机构		代理人
主权项
地址

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