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发明名称
SKAEREINDSATS MED EN HAARD SPIDS OG ET MIDTERAFSNIT AFGRAENSET AF EN KONKAV OMDREJNINGSFLADE
摘要
申请公布号
DK467587(A)
申请公布日期
1989.03.09
申请号
DK19870004675
申请日期
1987.09.08
申请人
KENNAMETAL INC.
发明人
BEACH, WAYNE H.
分类号
E21C35/18;E02F9/28;(IPC1-7):B28D1/14;E01C23/06
主分类号
E21C35/18
代理机构
代理人
主权项
地址
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