ANNULAR HOLE CUTTER,申请号US19900587719-传众专利搜索

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发明名称	ANNULAR HOLE CUTTER
摘要
申请公布号	US5218888(A)	申请公布日期	1993.06.15
申请号	US19900587719	申请日期	1990.09.25
申请人	ROTABROACH LIMITED	发明人	MERRILL, DERRICK
分类号	B23B51/04	主分类号	B23B51/04
代理机构		代理人
主权项
地址

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