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发明名称
Drills
摘要
申请公布号
US2882765(A)
申请公布日期
1959.04.21
申请号
US19560574258
申请日期
1956.03.27
申请人
ANDREASSON RUDOLF W
发明人
ANDREASSON RUDOLF W.
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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