Lampes à vapeur de sodium,申请号FRD771823-传众专利搜索

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发明名称	Lampes à vapeur de sodium
摘要
申请公布号	FR771823(A)	申请公布日期	1934.10.18
申请号	FRD771823	申请日期	1934.04.13
申请人	WESTINGHOUSE LAMP COMPANY	发明人
分类号	B42F13/28;H01J61/74	主分类号	B42F13/28
代理机构		代理人
主权项
地址

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