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经营范围
发明名称
Broaching apparatus
摘要
申请公布号
US2013899(A)
申请公布日期
1935.09.10
申请号
US19310559155
申请日期
1931.08.25
申请人
LAYNE & BOWLER COMPANY
发明人
ROCO ALBERT L.
分类号
B23D43/06
主分类号
B23D43/06
代理机构
代理人
主权项
地址
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