Machine for grinding down conical points of drawn steel rods,申请号US19470738552-传众专利搜索

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发明名称	Machine for grinding down conical points of drawn steel rods
摘要
申请公布号	US2528042(A)	申请公布日期	1950.10.31
申请号	US19470738552	申请日期	1947.04.01
申请人	THE PUTNAM NEEDLE COMPANY	发明人	DEAN ELLIOTT D.;ROGERS ARTHUR H.
分类号	B24B5/32	主分类号	B24B5/32
代理机构		代理人
主权项
地址

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