Phototube,申请号US19310509377-传众专利搜索

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发明名称	Phototube
摘要
申请公布号	US2000705(A)	申请公布日期	1935.05.07
申请号	US19310509377	申请日期	1931.01.17
申请人	WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY	发明人	LONG THOMAS H.
分类号	H01J40/04	主分类号	H01J40/04
代理机构		代理人
主权项
地址

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