Bohrwerkzeug zum Erweitern von Blindbohrungen,申请号DE19681752177-传众专利搜索

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发明名称	Bohrwerkzeug zum Erweitern von Blindbohrungen
摘要
申请公布号	DE1752177(B1)	申请公布日期	1971.12.30
申请号	DE19681752177	申请日期	1968.04.13
申请人	JOHN DARBYSHIRE & CO LTD	发明人	NOEL DARBYSHIRE LESLIE
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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