Electric valve circuits,申请号US19340747164-传众专利搜索

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发明名称	Electric valve circuits
摘要
申请公布号	US2039027(A)	申请公布日期	1936.04.28
申请号	US19340747164	申请日期	1934.10.06
申请人	GENERAL ELECTRIC COMPANY	发明人	PERROTT LAURENCE F.
分类号	H01J13/48	主分类号	H01J13/48
代理机构		代理人
主权项
地址

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