Apparatus for making wrench nuts,申请号US19470757115-传众专利搜索

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发明名称	Apparatus for making wrench nuts
摘要
申请公布号	US2530968(A)	申请公布日期	1950.11.21
申请号	US19470757115	申请日期	1947.06.26
申请人	WESTFIELD METAL PRODUCTS CO., INC.	发明人	JOHNSON EFFIE B.
分类号	B23G9/00	主分类号	B23G9/00
代理机构		代理人
主权项
地址

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