Expendable die casting sand core,申请号GB19800031348-传众专利搜索

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发明名称	Expendable die casting sand core
摘要
申请公布号	GB2061151(A)	申请公布日期	1981.05.13
申请号	GB19800031348	申请日期	1980.09.29
申请人	NL INDUSTRIES INC	发明人
分类号	B22D17/22;B22C1/22;B22C3/00;B22C9/10;B22D17/00;B22D17/24;(IPC1-7):B22C9/10;B22D17/20	主分类号	B22D17/22
代理机构		代理人
主权项
地址

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