Fuehrungsvorrichtung fuer Bohrwerkzeug-Rohrstraenge,申请号DE1964C031840-传众专利搜索

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发明名称	Fuehrungsvorrichtung fuer Bohrwerkzeug-Rohrstraenge
摘要
申请公布号	DE1229929(B)	申请公布日期	1966.12.08
申请号	DE1964C031840	申请日期	1964.01.09
申请人	CHEVRON RESEARCH COMPANY	发明人	FISCHER WILLIAM
分类号	E21B7/128	主分类号	E21B7/128
代理机构		代理人
主权项
地址

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