Improvements in or relating to sand moulds,申请号GB19300014573-传众专利搜索

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发明名称	Improvements in or relating to sand moulds
摘要
申请公布号	GB357126(A)	申请公布日期	1931.09.14
申请号	GB19300014573	申请日期	1930.05.12
申请人	BENJAMIN FRANKLIN WALLACE	发明人
分类号	B22C3/00	主分类号	B22C3/00
代理机构		代理人
主权项
地址

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