Means for pneumatically casting cores,申请号US19490114547-传众专利搜索

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发明名称	Means for pneumatically casting cores
摘要
申请公布号	US2607967(A)	申请公布日期	1952.08.26
申请号	US19490114547	申请日期	1949.09.08
申请人	SPRINGER WILLIAM K	发明人	SPRINGER WILLIAM K.
分类号	B22C15/24	主分类号	B22C15/24
代理机构		代理人
主权项
地址

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