Procédé pour garnir d'un revêtement protecteur intérieur des branchements de tuyaux se composant de tubes soudés ensemble,申请号FRD708441-传众专利搜索

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发明名称	Procédé pour garnir d'un revêtement protecteur intérieur des branchements de tuyaux se composant de tubes soudés ensemble
摘要
申请公布号	FR708441(A)	申请公布日期	1931.07.23
申请号	FRD708441	申请日期	1930.12.27
申请人		发明人	TRAUT RUDOLF
分类号	B21D39/04	主分类号	B21D39/04
代理机构		代理人
主权项
地址

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