OPERATING SYSTEM FOR DRILLING MACHINERY,申请号AU19870067165-传众专利搜索

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发明名称	OPERATING SYSTEM FOR DRILLING MACHINERY
摘要
申请公布号	AU594993(B2)	申请公布日期	1990.03.22
申请号	AU19870067165	申请日期	1987.01.06
申请人	BECOR WESTERN INC.,	发明人	RICHARD A. JASINSKI
分类号	E21B44/00;E21B;E21B3/00;E21B7/00;E21B44/04;(IPC1-7):E21B7/00	主分类号	E21B44/00
代理机构		代理人
主权项
地址

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