Method of strengthening and improving cast iron,申请号US19410390112-传众专利搜索

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发明名称	Method of strengthening and improving cast iron
摘要
申请公布号	US2305222(A)	申请公布日期	1942.12.15
申请号	US19410390112	申请日期	1941.04.24
申请人	MARTINO JOHN C	发明人	MARTINO JOHN C.
分类号	C21C1/00	主分类号	C21C1/00
代理机构		代理人
主权项
地址

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