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发明名称
Drill jack
摘要
申请公布号
US2471374(A)
申请公布日期
1949.05.24
申请号
US19450625000
申请日期
1945.10.27
申请人
MCAFEE JR SAMUEL H
发明人
JR. SAMUEL H. MCAFEE,
分类号
B23B45/14;B25H1/00
主分类号
B23B45/14
代理机构
代理人
主权项
地址
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