Earth and the like boring or drilling apparatus,申请号GB19610046754-传众专利搜索

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发明名称	Earth and the like boring or drilling apparatus
摘要
申请公布号	GB962127(A)	申请公布日期	1964.06.24
申请号	GB19610046754	申请日期	1961.12.29
申请人	ENGLISH DRILLING EQUIPMENT COMPANY LIMITED;FRANK WALMSLEY	发明人	STALLARD FREDERICK RICHARD
分类号	E21B4/14	主分类号	E21B4/14
代理机构		代理人
主权项
地址

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