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发明名称
Boring device
摘要
申请公布号
US2822709(A)
申请公布日期
1958.02.11
申请号
US19560615625
申请日期
1956.10.12
申请人
JESZKA EDWARD T
发明人
JESZKA EDWARD T.
分类号
B23B41/06
主分类号
B23B41/06
代理机构
代理人
主权项
地址
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