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发明名称
Drill head safety mechanism
摘要
申请公布号
US1824984(A)
申请公布日期
1931.09.29
申请号
US19300418530
申请日期
1930.01.04
申请人
THE FOSDICK MACHINE TOOL COMPANY
发明人
ROO WILLIAM C. DE
分类号
B23Q5/58
主分类号
B23Q5/58
代理机构
代理人
主权项
地址
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