On May 19th , 2010, VIGA Trapezoid basin mixer which designed by designer Peter Kuang, ti ni iwe-ẹri itọsi apẹrẹ nipasẹ ọfiisi ohun-ini ti ile ti P.R.... Ijẹrisi naa. Ref.:1220930 which with the valid till May 18th 2020.
Trapezoidal Faucet Design Patent Certificate-2009
Itele: 2012 Ifihan KBC
