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发明名称
High powered spindle operating unit for drilling and tapping machines
摘要
申请公布号
US2930261(A)
申请公布日期
1960.03.29
申请号
US19570691960
申请日期
1957.10.23
申请人
EMRICK DOROTHEA A
发明人
EMRICK DOROTHEA A.
分类号
B23B47/22;B23Q5/26
主分类号
B23B47/22
代理机构
代理人
主权项
地址
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