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发明名称
Method for sharpening rock drill bits
摘要
申请公布号
US3201903(A)
申请公布日期
1965.08.24
申请号
US19630321159
申请日期
1963.11.04
申请人
SANDVIKENS JERNVERKS AKTIEBOLAG
发明人
LUNDIN ERIK GUSTAV BENGT
分类号
B24B3/33
主分类号
B24B3/33
代理机构
代理人
主权项
地址
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