Perfectionnements aux procédés de fabrication de tubes,申请号FRD972849-传众专利搜索

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发明名称	Perfectionnements aux procédés de fabrication de tubes
摘要
申请公布号	FR972849(A)	申请公布日期	1951.02.05
申请号	FRD972849	申请日期	1941.05.16
申请人	SOCIETE ANONYME DES TUBES DE VALENCIENNES ET DENAIN	发明人
分类号	B23K13/02;B23K13/04	主分类号	B23K13/02
代理机构		代理人
主权项
地址

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