Procédé de trempe de mandrins creux,申请号FRD871968-传众专利搜索

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发明名称	Procédé de trempe de mandrins creux
摘要
申请公布号	FR871968(A)	申请公布日期	1942.05.23
申请号	FRD871968	申请日期	1941.05.06
申请人		发明人	SPRUNGMANN HUGO
分类号	C21D9/08	主分类号	C21D9/08
代理机构		代理人
主权项
地址

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