MOUTH HYDRAULIC VIBRATOR von ICHEVA N.JU, GASUMOV RAMIZ ALIDZHAVAD OGLY, MASHKOV V.A, PAROSOCHENKO S.A, KULISH D.N

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DEVICE FOR CLEANING WELL FROM SAND OBSTRUCTION von SERKOVA O.N, ICHEVA N.JU, GASUMOV RAMIZ ALIDZHAVAD OGLY, MINLIKAEV V.Z, MASHKOV V.A, PAROSOCHENKO S.A

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DEVICE FOR SAND BRIDGE REMOVAL FROM WELL von TAGIROV O.K, PONOMARENKO M.N, LUTSENKO JU.N, ICHEVA N.JU, GASUMOV RAMIZ ALIDZHAVAD OGLY, GEJKHMAN M.G, KOZLOV N.B, MASHKOV V.A

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DEVICE TO SHUT OFF VALVES OF DOWN-HOLE SAMPLER von SERKOVA O.N, LUTSENKO JU.N, ICHEVA N.JU, TEMIROV A.A, AKULINCHEV B.P, GASUMOV RAMIZ ALIDZHAVAD OGLY, VERSHOVSKIJ V.G, KOVALENKO V.S

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