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发明名称
Drill guide
摘要
申请公布号
US2539223(A)
申请公布日期
1951.01.23
申请号
US19460658243
申请日期
1946.03.29
申请人
HARRY L. STILLMAN
发明人
BELLEK FRANK G.
分类号
B23B51/00
主分类号
B23B51/00
代理机构
代理人
主权项
地址
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