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发明名称
Improvements in and relating to portable drill stands
摘要
申请公布号
GB643869(A)
申请公布日期
1950.09.27
申请号
GB19470018408
申请日期
1947.07.11
申请人
JOHN RICHARD PYE
发明人
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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