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发明名称
Masonry drill
摘要
申请公布号
US2879036(A)
申请公布日期
1959.03.24
申请号
US19560593524
申请日期
1956.06.25
申请人
WHEELER PHILIP T
发明人
WHEELER PHILIP T.
分类号
B23B51/00;E21B10/58;E21B10/62
主分类号
B23B51/00
代理机构
代理人
主权项
地址
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