Improvements in feeding mechanisms for rock drills,申请号GB19500028370-传众专利搜索

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发明名称	Improvements in feeding mechanisms for rock drills
摘要
申请公布号	GB710486(A)	申请公布日期	1954.06.16
申请号	GB19500028370	申请日期	1950.11.20
申请人	AKTIEBOLAGET ATLAS DIESEL	发明人
分类号	E21B19/086	主分类号	E21B19/086
代理机构		代理人
主权项
地址

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