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发明名称
BUCKET DRILL
摘要
申请公布号
SU1506058(A1)
申请公布日期
1989.09.07
申请号
SU19874341468
申请日期
1987.12.10
申请人
SP KT BYURO PO ZEMLEROJNYM MASHINAM VORONEZHSKOGO PROIZVODSTVENNOGO OBEDINENIYA PO VYPUSKU TYAZHELYKH EKSKAVATOROV IM.KOMINTERNA
发明人
FREJDLES ALEKSANDR P,SU
分类号
E21B7/24
主分类号
E21B7/24
代理机构
代理人
主权项
地址
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