Perfectionnements aux fours à induction,申请号FRD678719-传众专利搜索

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发明名称	Perfectionnements aux fours à induction
摘要
申请公布号	FR678719(A)	申请公布日期	1930.04.03
申请号	FRD678719	申请日期	1929.07.18
申请人		发明人	NORTHRUP EDWIN FITCH
分类号	H05B6/02	主分类号	H05B6/02
代理机构		代理人
主权项
地址

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