DRILL BOOM,申请号AU19790046021-传众专利搜索

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发明名称	DRILL BOOM
摘要
申请公布号	AU527490(B2)	申请公布日期	1983.03.10
申请号	AU19790046021	申请日期	1979.04.11
申请人	ATLAS COPCO AKTIEBOLAG	发明人	E.V. KIMBER, A.L. LUNSTROM
分类号	E21B15/04;F15B11/20;(IPC1-7):E21C11/00	主分类号	E21B15/04
代理机构		代理人
主权项
地址

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