Improvements in rock drilling equipment,申请号GB19630026975-传众专利搜索

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发明名称	Improvements in rock drilling equipment
摘要
申请公布号	GB1033603(A)	申请公布日期	1966.06.22
申请号	GB19630026975	申请日期	1963.07.08
申请人	ATLAS COPCO AKTIEBOLAG	发明人
分类号	E21B10/66	主分类号	E21B10/66
代理机构		代理人
主权项
地址

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