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发明名称
ROLLER DRILLING BIT
摘要
申请公布号
SU1357532(A1)
申请公布日期
1987.12.07
申请号
SU19803005095
申请日期
1980.11.17
申请人
SP K BYURO PO DOLOTAM PROIZVODSTVENNOGO OBEDINENIYA "KUJBYSHEVBURMASH";DROGOBYCHSKIJ DOLOTNYJ ZAVOD
发明人
POROSENKOV ALEKSANDR P,SU;BASANOV YURIJ I,SU;LOGINOV ANATOLIJ A,SU;MOKRENKO IVAN P,SU;ILYK TEOFIL A,SU;YAKIMCHUK ULYAN N,SU
分类号
E21B10/24
主分类号
E21B10/24
代理机构
代理人
主权项
地址
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