Method of making high strength rotating elements,申请号US19490111858-传众专利搜索

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发明名称	Method of making high strength rotating elements
摘要
申请公布号	US2629923(A)	申请公布日期	1953.03.03
申请号	US19490111858	申请日期	1949.08.23
申请人	GENERAL ELECTRIC COMPANY	发明人	JR. ROBERT B. JOHNSON,
分类号	B21K1/28	主分类号	B21K1/28
代理机构		代理人
主权项
地址

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