PERCUSSIVE DRILLING RIGS,申请号GBD1341007-传众专利搜索

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发明名称	PERCUSSIVE DRILLING RIGS
摘要
申请公布号	GB1341007(A)	申请公布日期	1973.12.19
申请号	GBD1341007	申请日期	1969.12.30
申请人	SEROTA S	发明人
分类号	E21B3/02;E21B6/00;(IPC1-7):E21B3/02	主分类号	E21B3/02
代理机构		代理人
主权项
地址

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