Method of making steel shells,申请号US19570636007-传众专利搜索

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发明名称	Method of making steel shells
摘要
申请公布号	US2997774(A)	申请公布日期	1961.08.29
申请号	US19570636007	申请日期	1957.01.24
申请人	ALBERT LYON GEORGE	发明人	LYON GEORGE ALBERT
分类号	B21K1/00	主分类号	B21K1/00
代理机构		代理人
主权项
地址

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