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发明名称
Dispositif pour le fonçage de puits verticaux
摘要
申请公布号
FR1545870(A)
申请公布日期
1968.11.15
申请号
FR19670123347
申请日期
1967.10.04
申请人
TSENTRALNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNO-KONSTRUKTORSKY INSTITUT PODZEMNOGO I SHAKHTNOGO STROITELSTVA
发明人
PRUZHINER V. L.;ZHADAEV V. G.;MALIOVANOV D. I.;MOROZOVA N. A.;SALMANOV V. I.;LITVIN A. Z.
分类号
E21B27/00;E21D1/04
主分类号
E21B27/00
代理机构
代理人
主权项
地址
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