élément chauffant électrique du type à résistance enroulée en spirale dans une plaque,申请号FR19600839629-传众专利搜索

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发明名称	élément chauffant électrique du type à résistance enroulée en spirale dans une plaque
摘要
申请公布号	FR1275439(A)	申请公布日期	1961.11.10
申请号	FR19600839629	申请日期	1960.09.27
申请人	FERRO CORPORATION	发明人
分类号	H05B3/74	主分类号	H05B3/74
代理机构		代理人
主权项
地址

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