Procédé perfectionné pour la production de tuyaux métalliques malléables,申请号FRD675259-传众专利搜索

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发明名称	Procédé perfectionné pour la production de tuyaux métalliques malléables
摘要
申请公布号	FR675259(A)	申请公布日期	1930.02.07
申请号	FRD675259	申请日期	1929.05.16
申请人		发明人	WEIR EDWARD
分类号	B21C37/14	主分类号	B21C37/14
代理机构		代理人
主权项
地址

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