Method of lubricating a pierced extrusion billet,申请号US19580719277-传众专利搜索

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发明名称	Method of lubricating a pierced extrusion billet
摘要
申请公布号	US2908385(A)	申请公布日期	1959.10.13
申请号	US19580719277	申请日期	1958.03.05
申请人	THE BABCOCK & WILCOX COMPANY	发明人	WALKER WILLIAM R.
分类号	B21C23/32	主分类号	B21C23/32
代理机构		代理人
主权项
地址

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