Electrical regulating apparatus,申请号US19390298299-传众专利搜索

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发明名称	Electrical regulating apparatus
摘要
申请公布号	US2282471(A)	申请公布日期	1942.05.12
申请号	US19390298299	申请日期	1939.10.06
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	HEDDING LINNIE K.
分类号	G05F1/33	主分类号	G05F1/33
代理机构		代理人
主权项
地址

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