Sand mold containing a chill section and method of treating same,申请号US19550552658-传众专利搜索

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发明名称	Sand mold containing a chill section and method of treating same
摘要
申请公布号	US2816336(A)	申请公布日期	1957.12.17
申请号	US19550552658	申请日期	1955.12.12
申请人	AMERICAN STEEL FOUNDRIES	发明人	NEFF PAUL J.
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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