VALVE-TYPE PERCUSSION DRILL BIT,申请号CAD874843-传众专利搜索

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发明名称	VALVE-TYPE PERCUSSION DRILL BIT
摘要
申请公布号	CA874843(A)	申请公布日期	1971.07.06
申请号	CAD874843	申请日期
申请人	PAUL G. GATIEN	发明人	PAUL G. GATIEN
分类号		主分类号
代理机构		代理人
主权项
地址

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