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发明名称
SELF-CENTERING ARRANGEMENT FOR GRINDING THE HARDMETAL PINS OF DRILL BITS
摘要
申请公布号
US5070654(A)
申请公布日期
1991.12.10
申请号
US19890422128
申请日期
1989.10.16
申请人
C.M.E. BLASTING & MINING EQUIPMENT, LTD.
发明人
MANQVIST, KALLEVI K.;SJOLANDER, ROBERT
分类号
B24B3/60;B24B3/33;B24B19/04;B24B27/00;B24B27/04;B24D99/00;E21B12/06
主分类号
B24B3/60
代理机构
代理人
主权项
地址
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