Koplingsstykke for bruk ved samtidig jord- og/eller fjellboring med en °vre roterende slaganordning og en nedre slaganordning,申请号NO19990001318-传众专利搜索

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发明名称	Koplingsstykke for bruk ved samtidig jord- og/eller fjellboring med en °vre roterende slaganordning og en nedre slaganordning
摘要
申请公布号	NO991318(D0)	申请公布日期	1999.03.18
申请号	NO19990001318	申请日期	1999.03.18
申请人	ATLAS COPCO CRAELIUS AB	发明人	BORG, TOMAS
分类号	E21B4/20;E21B6/00;E21B17/03;E21B19/086;E21B21/02;E21B44/00;(IPC1-7):E21B	主分类号	E21B4/20
代理机构		代理人
主权项
地址

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