Apparatus for controlling electrical circuits by means of electrical valves,申请号US19310527030-传众专利搜索

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发明名称	Apparatus for controlling electrical circuits by means of electrical valves
摘要
申请公布号	US1929216(A)	申请公布日期	1933.10.03
申请号	US19310527030	申请日期	1931.04.01
申请人	SIEMENS & HALSKE, AKTIENGESELLSCHAFT	发明人	PFANNENMULLER HANS
分类号	G05F1/12	主分类号	G05F1/12
代理机构		代理人
主权项
地址

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