RAISE DRILL BIT,申请号AU19780039321-传众专利搜索

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发明名称	RAISE DRILL BIT
摘要
申请公布号	AU516106(B2)	申请公布日期	1981.05.14
申请号	AU19780039321	申请日期	1978.08.28
申请人	SANDVIK AKTIEBOLAG	发明人	B.S. LILJEKVIST;A.E. PERSSON
分类号	E21B7/28;E21B17/046;F16D1/076;(IPC1-7):E21D3/00	主分类号	E21B7/28
代理机构		代理人
主权项
地址

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