An improved vent plug for sand blowing in core boxes and cast iron moulds,申请号GB19520011628-传众专利搜索

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发明名称	An improved vent plug for sand blowing in core boxes and cast iron moulds
摘要
申请公布号	GB715710(A)	申请公布日期	1954.09.22
申请号	GB19520011628	申请日期	1952.05.08
申请人	HERMANN WILLY KRAUSS	发明人
分类号	B22C7/06	主分类号	B22C7/06
代理机构		代理人
主权项
地址

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