Wrought machinable tool steels,申请号US19540421949-传众专利搜索

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发明名称	Wrought machinable tool steels
摘要
申请公布号	US2914400(A)	申请公布日期	1959.11.24
申请号	US19540421949	申请日期	1954.04.08
申请人	VANADIUMALLOYS STEEL COMPANY	发明人	ROBERTS GEORGE A.
分类号	C21C7/00;C22C38/60	主分类号	C21C7/00
代理机构		代理人
主权项
地址

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