Drill turning mechanism of hammer drills,申请号US19490103226-传众专利搜索

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发明名称	Drill turning mechanism of hammer drills
摘要
申请公布号	US2618241(A)	申请公布日期	1952.11.18
申请号	US19490103226	申请日期	1949.07.06
申请人	AKTIEBOLAGET ATLAS DIESEL	发明人	LARCEN JAN AUGUST;YTTERFORS SVEN LAURENTIUS
分类号	E21B6/08	主分类号	E21B6/08
代理机构		代理人
主权项
地址

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