ROCK BIT ROLLING CONE CUTTER WITH WRAPAROUND SPEARPOINT,申请号CAD693669-传众专利搜索

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发明名称	ROCK BIT ROLLING CONE CUTTER WITH WRAPAROUND SPEARPOINT
摘要
申请公布号	CA693669(A)	申请公布日期	1964.09.01
申请号	CAD693669	申请日期
申请人	HUGHES TOOL COMPANY	发明人	FRED H. MCELYA;LEON B. STINSON
分类号		主分类号
代理机构		代理人
主权项
地址

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