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- Pat. on fig. 2340818 Russia. IPC F16H25 / 22. Converter circular motion into linear / PY Krauinsh, SA Smiley, BB Moises, EA Sikora. 26.03.2007 stated; Publ. 10.12.2008, Bull. №34. - 5 .: Ill.
- Pat. climbed on. mod. 79955 Russian Federation. IPC F04C9 / 00. Pump with a spherical piston for commercial wells / PY Krauinsh, SA Smiley, EA Sikora, KA Pitchers. 02.06.2008 stated; Publ. 20.01.2009, Bull. №2. - 1 .: Ill.
- Pat. on fig. 2347953 Russia. IPC F15B11 / 12. Stepper drive with volumetric dosing / PY Crowe-insh, SA Smiley, EA Sikora, BB Moises, KA Pitchers. 25.12.2006 stated; Publ. 27.02.2009, Bull. №6. - 7 .: Ill.
- Pat. on fig. 2359107 Russia. IPC E21B37 / 00. A device for cleaning wells / PY Krauinsh, SA Smileys. DP Krauinsh, KA Pitchers, EA Sikora. 07.12.2007 stated; Publ. 20.06.2009, Bull. №17. - 8 .: Ill.
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