Method of making roller bearings,申请号US19340735802-传众专利搜索

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发明名称	Method of making roller bearings
摘要
申请公布号	US2102460(A)	申请公布日期	1937.12.14
申请号	US19340735802	申请日期	1934.07.18
申请人	HEIM LEWIS R	发明人	HEIM LEWIS R.
分类号	B21D53/10;F16C19/46	主分类号	B21D53/10
代理机构		代理人
主权项
地址

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