Procédé de fabrication de corps durs,申请号FRD831990-传众专利搜索

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发明名称	Procédé de fabrication de corps durs
摘要
申请公布号	FR831990(A)	申请公布日期	1938.09.16
申请号	FRD831990	申请日期	1938.01.12
申请人		发明人	KRATKY ANTON
分类号	B22D21/06	主分类号	B22D21/06
代理机构		代理人
主权项
地址

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