Electric lighting system and controls therefor,申请号US19310568670-传众专利搜索

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发明名称	Electric lighting system and controls therefor
摘要
申请公布号	US1982500(A)	申请公布日期	1934.11.27
申请号	US19310568670	申请日期	1931.10.14
申请人	DOUGLAS HARRY A	发明人	DOUGLAS HARRY A.
分类号	H01H13/16	主分类号	H01H13/16
代理机构		代理人
主权项
地址

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