Self-cleaning collapsible reamer,申请号US19560617200-传众专利搜索

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发明名称	Self-cleaning collapsible reamer
摘要
申请公布号	US2882019(A)	申请公布日期	1959.04.14
申请号	US19560617200	申请日期	1956.10.19
申请人	CARR CHARLES J;ERWIN BURNS	发明人	CARR CHARLES J.;BURNS ERWIN
分类号	E21B10/32	主分类号	E21B10/32
代理机构		代理人
主权项
地址

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