Device for hydraulic protection of electrically driven borehole motor for, mainly, rotary pump (versions)
RU2472619C1
Method of making general mechanical rubber goods from elastomer compositions based on butadiene-nitrile rubber
RU2534231C2
Method of obtaining protective coating on surface of metal product, operating under conditions of highly aggressive medium, higher temperatures and abrasive impact
RU2470695C1
Wire filter (versions)
RU2407919C1
Well pump
RU2303134C1
Internal engagement rotary machine (versions)
RU2353812C2
Device for hydralic protection of well pump electric motor
RU2286461C1
Method of lubrication of internal meshing rotary machine and internal meshing rotary machine (versions)
RU2294436C1
Internal engagement rotary machine
RU2284424C1
Internal gearing rotary machine
RU2283441C1
Trochold rotary machine (versions)
RU2281858C2
Method for hollow article production of thermoplastic material
