3411 Cheti cha Patent ya Bonde la Bonde-2012

On Oct 17th, 2012, VIGA basin mixer of 3411 mfululizo, ambayo iliyoundwa na mbuni Peter Kuang, amepata cheti cha patent ya muundo na Ofisi ya Mali ya Akili ya Jimbo la P.R.C. Cheti hapana. Ref.:2138125 which with the valid till Oct 16th 2022.