Fail-safe striking assembly for the valveless percussive action drilling unit,申请号PL20080389466-传众专利搜索

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发明名称	Fail-safe striking assembly for the valveless percussive action drilling unit
摘要
申请公布号	PL389466(A1)	申请公布日期	2010.03.29
申请号	PL20080389466	申请日期	2008.01.31
申请人	J.H. FLETCHER & CO.	发明人	MORRISON WARD D.
分类号	B25D9/00	主分类号	B25D9/00
代理机构		代理人
主权项
地址

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