Method and apparatus for forming screw threads,申请号GB19470023992-传众专利搜索

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发明名称	Method and apparatus for forming screw threads
摘要
申请公布号	GB639061(A)	申请公布日期	1950.06.21
申请号	GB19470023992	申请日期	1947.08.29
申请人	LEO WILLIAM BEDKER	发明人
分类号	B21H3/04	主分类号	B21H3/04
代理机构		代理人
主权项
地址

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