Perfectionnements au traitement des sables de moulage pour fonderies,申请号FRD939806-传众专利搜索

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发明名称	Perfectionnements au traitement des sables de moulage pour fonderies
摘要
申请公布号	FR939806(A)	申请公布日期	1948.11.25
申请号	FRD939806	申请日期	1947.01.18
申请人		发明人	DRAKE GEORGE HENRY
分类号	B22C1/02	主分类号	B22C1/02
代理机构		代理人
主权项
地址

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