Improvements in processes for hardening sand moulds and cores,申请号GB19600004311-传众专利搜索

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发明名称	Improvements in processes for hardening sand moulds and cores
摘要
申请公布号	GB879214(A)	申请公布日期	1961.10.04
申请号	GB19600004311	申请日期	1960.02.08
申请人	HEINRICH KOCH;REINHARD KOCH	发明人
分类号	B22C1/16	主分类号	B22C1/16
代理机构		代理人
主权项
地址

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