Drilling machine for the simultaneous drilling of three holes,申请号US19480010996-传众专利搜索

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发明名称	Drilling machine for the simultaneous drilling of three holes
摘要
申请公布号	US2484243(A)	申请公布日期	1949.10.11
申请号	US19480010996	申请日期	1948.02.26
申请人	ALEXANDER NIELSEN ROBERT	发明人	NIELSEN ROBERT ALEXANDER
分类号	B23B39/16	主分类号	B23B39/16
代理机构		代理人
主权项
地址

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