Method and apparatus for forming hollow cores for casting metals,申请号GB19520032367-传众专利搜索

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发明名称	Method and apparatus for forming hollow cores for casting metals
摘要
申请公布号	GB718684(A)	申请公布日期	1954.11.17
申请号	GB19520032367	申请日期	1952.12.22
申请人	GENERAL MOTORS CORPORATION	发明人
分类号	B22C15/24;B22C23/00	主分类号	B22C15/24
代理机构		代理人
主权项
地址

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