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发明名称
Drilling machine
摘要
申请公布号
US2397563(A)
申请公布日期
1946.04.02
申请号
US19410384838
申请日期
1941.03.24
申请人
PRIEST JR CHARLES H
发明人
JR. CHARLES H. PRIEST,
分类号
B23B41/00
主分类号
B23B41/00
代理机构
代理人
主权项
地址
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