Perfectionnements aux radiateurs à ailettes,申请号FRD850531-传众专利搜索

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发明名称	Perfectionnements aux radiateurs à ailettes
摘要
申请公布号	FR850531(A)	申请公布日期	1939.12.19
申请号	FRD850531	申请日期	1938.08.24
申请人	COMPAGNIE GENERALE DE TRAVAUX D'ECLAIRAGE ET DE FORCE	发明人
分类号	B21C37/24	主分类号	B21C37/24
代理机构		代理人
主权项
地址

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