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发明名称
Drilling unit
摘要
申请公布号
US4913600(A)
申请公布日期
1990.04.03
申请号
US19880173321
申请日期
1988.03.25
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DIERICH, DIETER;ROTTER, WALTER;TROLLMANN, CONRAD
分类号
B23B39/00;B23B47/22;B23Q1/26;B23Q5/26;F15B15/02;F15B15/14;H05K3/00
主分类号
B23B39/00
代理机构
代理人
主权项
地址
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