Procédé de fabrication de corps creux métalliques et produits obtenus par la mise en oeuvre de ce procédé,申请号FRD1001788-传众专利搜索

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发明名称	Procédé de fabrication de corps creux métalliques et produits obtenus par la mise en oeuvre de ce procédé
摘要
申请公布号	FR1001788(A)	申请公布日期	1952.02.27
申请号	FRD1001788	申请日期	1949.12.03
申请人		发明人	VILLENEUVE LOUIS
分类号	B21K5/02	主分类号	B21K5/02
代理机构		代理人
主权项
地址

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