DRILL STRING SHOCK ABSORBING TOOL,申请号AU19750082211-传众专利搜索

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法人/股东/高管

发明名称	DRILL STRING SHOCK ABSORBING TOOL
摘要
申请公布号	AU499070(B2)	申请公布日期	1979.04.05
申请号	AU19750082211	申请日期	1975.06.18
申请人	LEE-MASON TOOLS LTD	发明人	L. MASON;D. ANDERSON
分类号	E21B17/06;F16D3/06;(IPC1-7):E21B17/00;E21B7/00	主分类号	E21B17/06
代理机构		代理人
主权项
地址

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