Light control system,申请号US19380220652-传众专利搜索

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发明名称	Light control system
摘要
申请公布号	US2199394(A)	申请公布日期	1940.05.07
申请号	US19380220652	申请日期	1938.07.22
申请人	LEON DEWAN	发明人	DEWAN LEON
分类号	H01H47/24	主分类号	H01H47/24
代理机构		代理人
主权项
地址

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