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经营范围
发明名称
FLUID OPERATED DRILLING HEAD
摘要
申请公布号
CZ8906386(A3)
申请公布日期
1993.02.17
申请号
CS19890006386
申请日期
1989.11.10
申请人
KARAGADINSKIJ POLYTECHNICESKIJ INSTITUT
发明人
NEROZNIKOV JURIJ IVANOVIC ING.;KYZYROV KAIRULLA BEISENBAJEVIC ING.;RUDAKOV IVAN PETROVIC ING.;CERNILOV ELJA GERSEV ING.;MEDJANIK VLADIMIR ALEXANDROVIC ING.;FANSTEJN VALENTIN NATANOVIC ING.
分类号
E21B4/14;(IPC1-7):E21B4/14;E21C3/20
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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