Sergey Borisovich Sivovolenko

3 Patents

• USD11135582026

  Gemstone

  0 cites
• USD10706452025

  Gemstone

  Octonus Finland OY

  0 cites
• US116732282023

  Method for Controlling the Polishing of Gemstones

  OCTONUS FINLAND OY

  0 cites