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发明名称
An improved device for marking centres for drilling holes and for like purposes
摘要
申请公布号
GB652493(A)
申请公布日期
1951.04.25
申请号
GB19480020654
申请日期
1948.08.05
申请人
PAUL TURNER
发明人
分类号
B25H7/04
主分类号
B25H7/04
代理机构
代理人
主权项
地址
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