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发明名称
RETURN-RUN HOLE EXPANDER
摘要
申请公布号
SU1430534(A1)
申请公布日期
1988.10.15
申请号
SU19874195933
申请日期
1987.02.17
申请人
N-PROIZV OB SAMOKHODNOJ GORNOJ TEKHNIKI "KRIVOROZHRUDMASH"
发明人
KURUNOV ALEKSANDR G,SU;BRONOVITSKIJ VALENTIN I,SU;SHCHERBINA VLADIMIR N,SU;SAMKO NINA A,SU;BUNIN NIKOLAJ I,SU
分类号
E21D3/00
主分类号
E21D3/00
代理机构
代理人
主权项
地址
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