Thread rolling dies and methods of making them,申请号US19620236372-传众专利搜索

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发明名称	Thread rolling dies and methods of making them
摘要
申请公布号	US3327569(A)	申请公布日期	1967.06.27
申请号	US19620236372	申请日期	1962.11.08
申请人	PRUTTON CORPORATION	发明人	PRUTTON HOWARD D.
分类号	B21H3/02	主分类号	B21H3/02
代理机构		代理人
主权项
地址

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