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发明名称
Drill
摘要
申请公布号
US2325535(A)
申请公布日期
1943.07.27
申请号
US19410416857
申请日期
1941.10.28
申请人
NORDBERG ALBERT J
发明人
NORDBERG ALBERT J.
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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