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发明名称
CHIPPING MATERIAL AWAY FROM WALL OF HOLE
摘要
申请公布号
GB8507775(D0)
申请公布日期
1985.05.01
申请号
GB19850007775
申请日期
1985.03.26
申请人
ERRUT PRODUCTS LTD
发明人
分类号
B23B51/00
主分类号
B23B51/00
代理机构
代理人
主权项
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