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发明名称
Improvements in pneumatically operated drilling machines
摘要
申请公布号
GB518602(A)
申请公布日期
1940.03.01
申请号
GB19380030142
申请日期
1938.10.18
申请人
HARDYPICK, LIMITED;FREDERICK WILSON HURD
发明人
分类号
B25D17/26
主分类号
B25D17/26
代理机构
代理人
主权项
地址
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